Good short term prepaid with data?

Hello, I am coming to Philly for about 10 days, and want to get a prepaid plan that charges talk and data on per-use basis, or something else that would be reasonably priced for the 10 day period. I already have a phone, so only looking for a SIM card.

Is it an At&t phone, or is it unlocked?

Most of the providers mandate a monthly data plan for smart phones. Per use data is pretty expensive, 33 cents per MB with AirVoiceWireless Air voice has a pay as you go plan or a $10 monthly plan. They use At&t sim cards.
The $10 plan gets you 4 cent a minute calls and 2 cent per text plus the data.

Straight Talk has a BYOD program. $15 for the sim ard and $45 a month for unlimited talk, text and data (2GB data). At&t or T-Mobile sims available.

If you use google voice and a jailbroke iPhone you can get the SMS GV extension from Cydia for $3. You get practically free incoming texts because it uses the push notificaton for the text and turns it into a full text message. Very little data usage for push. I use it on an iPhone with AirVoice's $10 a month plan.

You can go for the refurb White 16GB iPhone 4S from At&t for $299.99 with no commitment. New customers, you must pick a voice plan and a data plan with the phone purchase. Cancel at the end of the first month, sell the phone anytime you want. You can use the new sim in your current phone, you don't have to use the new iPhone. About $400 initial. They sell on eBay for $310 - $400 buy it now.

iPhone thread

i have 2 unlocked blackberries on hand. Thx for the help, I guess I'll just go with one of the big guys, Tmobile or Att