hi everyone. hopefully someone way more knowledgeable than myself will chime in and help me out with some of my questions here. on my 3gs, i have the the $5/200 txt plan. well this month i exceeded the txts and was looking to see what other txt plans were out there. in doing so, i found this thread on $10/1000 plan which is going away. while i want to jump on the $10/1000 txt plan, from what i read and understood, if I can ride it out for a few more months, i won't need the $10 plan as iMessage will help me out with all my txting to other iPhone users. I'd hate to pony up and upgrade to the $10 plan because from what I read, you won't be able to downgrade to the $5 plan anymore. is this correct? in the thread i linked, there are some users claiming that with wifi everywhere, a data plan is not needed with an iPhone. is this correct? my understand was that for email/internet, you needed a data plan. also in the thread, there is talk on a service Straight Talk. how good is ST on the iPhone? Pros/cons on the service? anyone here leave AT&T for ST and either like or dislike it? i know you need to jb your phone which what i don't want to do. did it before didn't care for it. thanks all for your help!