New York City - Pay as you go SIM for tourist

Is it possible to get any pay as you go SIM Card for a tourist heading to NYC for a short get away?

T-Mobile offers very reasonably priced prepaid GSM service in the US and I'd think you'd be able to pick up a SIM card in most T-Mobile stores (I'd stick to the actual T-Mobile stores and not third party dealers that might be more interested in selling you a phone). Here's their store locator: http://locator.t-mobile.com/Locator.aspx

Just make sure you have a quad-band unlocked phone because the US uses different GSM frequencies than most of the rest of the world.

T-Mobile offers very reasonably priced prepaid GSM service in the US and I'd think you'd be able to pick up a SIM card in most T-Mobile stores (I'd stick to the actual T-Mobile stores and not third party dealers that might be more interested in selling you a phone). Here's their store locator: http://locator.t-mobile.com/Locator.aspx

Just make sure you have a quad-band unlocked phone because the US uses different GSM frequencies than most of the rest of the world.
Is iphone 4s quad band?

Is iphone 4s quad band?

Is iPhone a phone ?

This is what they say:

World phone
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz);
GSM/EDGE (850, 900, 1800, 1900 MHz)
CDMA EV-DO Rev. A (800, 1900 MHz)4

I wouldn't even bother with a SIM card. A disposable phone and 200 minutes airtime can be had for about 60 bucks at the Kmart at Penn Station and other retailers.

I wouldn't even bother with a SIM card. A disposable phone and 200 minutes airtime can be had for about 60 bucks at the Kmart at Penn Station and other retailers.
i want to use it with my iphone 4s with data

i want to use it with my iphone 4s with data

http://www.flyertalk.com/forum/travel-technology/1093467-pre-paid-data-sim-cards-consolidated-thread.html

Either T-Mobile or AT&T, with AT&T if your phone is unlocked you can have a sim card for 10$ and add 20$ of data package for 200MB...