Mobile broadband (3G) is getting popular these days, but for most people (esp. consumers) that’s still a bit too expensive. At this time I think the good old Wifi is more suitable for me and many working from home (Starbucks, Panera Bread, Borders, Barnes Noble, or McDonald) type.
I used to use Free Wifi at Panera/St. Louis Bread Co. But “free” usually comes with a price, such as the new policy of “limit to 30 minutes use” between 11 AM to 2 PM. I have used two Wifi plan so far, T-mobile hotspot (Borders) and Boingo (many airports, Starbucks, McDonald). Let me compare those two plans:
Cost: T-mobile $19.99 per month for everyone ($9.99 for T-mobile wireless users, like me); Boingo costs $9.99 per month (US)
Coverage: Boingo wins this one because it is available in most Starbucks, McDonald, and airports. T-mobile hotspot is available in Borders bookstore, and it has a free roaming agreement with Starbucks (using AT&T Wifi), but I got some connection problem in one of my two visits to Starbucks. Of course the downside of Starbucks and McDonald is it’s more noisy than Borders (usually).
BTW, I found the iPhone Wifi Finder to be cool.