T-Mobile Which Sidekicks are able to do prepaid?

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You can use any T-Mobile Sidekick on Prepaid. They all work on the $1 a day Prepaid Sidekick plan, T-Mo 2 Go or Pay By the Day.
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how does the plan work with min do yu get tmail as well. how much will it cost a month and do u buy cards?
On the Sidekick plan, it's .20 a minute for calls. Yes, you do get a tmail email addresss and yes you have to buy T-Mobile toGo prepaid cards. It cost $1 a day, which includes unlimited email, Internet and text messaging.