Please sanity check. Am looking for any discrepencies in this analysis. Am particularly looking for more HSDPA info for comparison. _____________EVDO Summary for Newbies_____________ EVDO is a form of high speed wireless now broadly offered by Verizon and Sprint. Both offer EVDO phones and EVDO laptop cards. Verizon markets EVDO as VCast for phones and BroadbandAccess for laptop cards. Sprint markets EVDO as PowerVision for phones and Mobile Broadband for laptop cards. Both promote the average range of speeds between 400-700Kbits/sec (compared to a 56Kbits/sec modem dialup) but it is possible to get speeds over 1000Kbits/sec if near a tower. Before EVDO there was 1xRTT data with slower speeds typically between 50-100Kbits/sec and max of 144Kbits/sec. If EVDO is not available in an area, the EVDO device will step down and use 1xRTT. In general, wherever Sprint/Verizon have voice service, there is likely 1xRTT data service. Cingular has begun rolling out a comparable technology known as HSDPA. Performance is comparable to EVDO but only a handful of markets have HSDPA. Alltel also has rolled out EVDO to a few markets. ________________High Speed Coverage________________ Number of distinct contiguous markets covered by high speed wireless carriers: Sprint: 150+ Verizon: 85+ Cingular: 16+ Alltel: 11+ Sprint EVDO Coverage claimed: 150m+ population reported in December 2005. As of Feb, Sprint claims 220 markets but it's really only 150+ contiguous distinct markets with significant coverage. Sprint plans to rollout to 190m pops by end of 2006 and entire voice network by end of 2007. Sprint has all 1900mhz towers and can more easily add EVDO to any of them. Click here for EVDO Coverage Map. Verizon EVDO Coverage claimed: 148m population reported in December 2005. As of Feb, Verizon claims 180+ markets but it's really only 85+ contiguous distinct markets. No source found on expansion plans. Verizon has a mix of 800/1900mhz towers and tends to only put EVDO on 1900 so they may not do >75% of network. For exclusive 800mhz markets that do have EVDO, performances avgs are likely lower. If considering Verizon EVDO, may want to check if 1900mhz towers are in your area. Click here for EVDO Coverage Map - select Vcast. Cingular HSDPA Coverage claimed: Under 20 major markets. Initial plans were to expand to 100 markets by end of 2006 but lately they've been saying 'most major markets' for 2006. Some are also apparently only getting slower UMTS, not HSDPA. UMTS/HSDPA is not GSM based and therefore is a significantly, more costly upgrade for cellsites. Will be interesting to see what % of network becomes HSDPA in a couple years. PC World Review suggests the coverage maps are less than honest. See this evolving list of coverage. ________________Performance________________ Performance measurements are in bits, not bytes. 1000Kbits/sec = ~125KBytes/sec 600Kbits/sec = ~75KBytes/sec As of April 21, 2006 Sprint Download Performance Entries: 146 Average: 603Kbps Median: 480Kbps Peak: 1755Kbps >1Mbps: 15% of tests >600Kbps: 37% <400Kbps: 33% Std Deviation: 390Kbps Upld Avg: 78Kbps Verizon Download Performance Entries: 125 Average: 587Kbps Median: 529Kbps Peak: 1760Kbps >1Mbps: 11% of tests >600Kbps: 41% <400Kbps: 27% Std Deviation: 320Kbps Upld Avg: 93Kbps Cingular HSDPA Seeking comprehensive source for real-world user tests. Some users on HoFo are reporting 600k-1Mbps. PC World Review suggests not up to par with EVDO. Another article. HSDPA in some cases may have better latency than EVDO Rev 0 but not better than EVDO Rev A coming next year. Performance results from..... Verizon: http://www.broadbandreports.com/archive/myvzw.com Sprint: http://www.broadbandreports.com/archive/spcsdns.net To test yourself... (please record results to archive) http://speedtest.frontiernet.net/ Methodology: Filtered out are unrealistic results (dl over 2.4Mbps and ul over 150K) and multiple entries by zipcode within a few hours. For duplicate zips near same time, the highest speed was kept. For registered users posted, only the highest score was kept. This should give more realistic averages and factor out people who test multiple times in a row. These are all entries that have over 130Kbit/sec. The assumption is, if under 130K, it might have been a 1xRTT connection. ________________Terms of Service________________ Sprint EVDO Terms of Service: No specific restrictions other than unlawful abuse. Sprint actually promotes streaming video and online game use. Sprint does state the right to cancel service for any reasons but there are no known sources of Sprint sending letters for TOS violation if having the proper EVDO account. Verizon EVDO Terms of Service: Not allowed... Legal downloading or streaming music/movies/radio, VoIP, online games, webcams, among other things are "officially" not allowed. Verizon has sent letters to some users for TOS violation with specific dates mentioned for cancelling service. Cingular HSDPA Terms of Service: Appears less restrictive than Verizon but more restrictive than Sprint. Details here. ________________Rates________________ Sprint EVDO Rates: - Laptop cards $60/month w2yr contract/voice acct otherwise $80/month. - PowerVision phones start at $15/month, includes unlimited data/browsing within phone (and PDA phones). - USB or Bluetooth tethering to laptop officially available on all PowerVision phones with two plan options... --- $25/month for 40MB with per KB charge that caps to $70/month OR --- (new) $40/month unlimited flat charge. - Some PowerVision phones can be hacked to tether on the $15/month account (w/risk of terms of service violation or worse). - Can EVDO roam in Canada currently at no charge, Mexico supposedly coming Verizon EVDO Rates: - Laptop cards $60/month w2yr contract/voice acct otherwise $80/month. - VCast phones start at $15/month but unlimited data within a PDA phone is $45/month. - USB tethering to laptop officially available on new BlackBerry EVDO phone and some smartphone phones - $45/month for unlimited data + $15/month to tether. - Vcast and Razr phones apparently have tethering capability for $60/month. - Details. on tethering plans. Cingular HSDPA Rates: For data cards, appears to be $60/month with 2yr contract/voice plan otherwise $80/month. Appears to be $45-$50/month for in-phone use on PDAs and BlackBerries. Not clear on tethering details. Please post if you find more details. This is all I could find.