I know others have been discussing the wifi sleep mode but this is my experience so far. I am connected to my home wifi network and load pandora and start streaming music. later that evening i get a text message from ATT saying i have gone over my 200MB data plan and they charged me an extra $15. I have now of course discovered that all the captivate comes by default with wifi sleep set to the screen blanker. So when i started streaming with pandora then 5 seconds later my screen goes blank and it spends the rest of the day streaming from the 3G network. I have already called ATT and complained about this. I don't know if they did it on purpose to screw everyone over now that there's no unlimited data plan. But it seems crazy to ship this phone with that setting. I also have been going online and looking at my data usage and see that even though i'm on my home wifi it has been doing 3G data transfers at like 2 or 3am while i am sleeping also. I now have my sleep mode set to NEVER. I have also contacted Pandora and actually got a reply from them. I suggested that we desperately need an option to make pandora use WIFI ONLY or NEVER USE 3G put into the next update. The person said it sounded like a good idea and he would forward it on to the development team. Aside from that i LOVE my captivate. it's a really great phone for 95% of everything. I only have few things i would like to change. I really wish i could change the bottom right corner search button that i never use to a PHONE button to take me straight to the phone from wherever i am at. It's ironic that it seems like simply using the phone is the most complicated part of the captivate to me.