Advice needed on mobile internet device

I already posted this in the Wireless Data and Internet forum, but haven't received any responses. I will be using this device mainly in Boston and New York City, so I'm my question here.

I'm looking for some advice here. I run a website but do a lot of traveling and and would like to be able to update my site without needing to have my laptop with me at all times. So I'm looking for a wireless PDA or smartphone device that will allow me to access the internet (at broadband-level speeds) to update my site through the php forms we use. This means the device needs to have as full a browser as possible, like internet explorer or mozilla, so that it can access and submit information through these php forms. I would also like to use the device as my primary cell phone.

I currently have standard cellular service through Verizon, and in the best case scenario would like to stay with them to avoid the $150 early cancellation charge. As far as I can tell, however, Verizon only provides broadband access for the Audiovox XV6600 and therefore am not completely wedded to them -- especially if other services provide broadband access for more inexpensive devices.

Any suggestions?

 

well, it's not a full update. more like updating a blog through web-based php forms. I have heard of people doing that through devices like the sidkick, but i need something faster than that.