While not available on the Virgin mobile website anymore, you can go into a best buy or similar electronics store and get the virgin mobile switch back phone for about $85 bucks.
I was nervous at first when buying this product as I heard some of the virgin mobile phones were cheap. However, I'm glad I decided to take the risk.
This phone flips open and has a full keyboard, ideal for those who use their phone primarily for texting. They keys are good quality and it is comfortable to type on, and the phone is stillr elatively small when the keyboard is closed. The reception is always clear and reliable. I rarely have dropped calls.
The features and the display on this phone are pretty advanced for a prepaid phone. I still get comments on it a year later, all of my friends think my phone is "cute".
The Virgin mobile switch back is a high quality phone at a reasonable price, and a much more reasonably priced alternative to the Tmobile side kick.