Everyone thats driven through Downtown Boston knows about the mess that is the Big Dig. Last time I went through the tunnels (mid-August), I couldn't hold a conversation. Now i can hold a conversation through the entire length of the I-93 & I-90 tunnels. Ive confirmed this with t-mo, cingular, and nextel. Not sure when this went into effect (couldnt find an article), but this is a huge plus for anyone that has to drive into downtown Boston, or to Logan Airport.