Is it possibly to have a T-Mobile sidekick just for instant messaging and emailing?

i already have a cell phone i just want the sidekick for those purposes only.
Is it possibly to have a T-Mobile sidekick just for instant messaging and emailing?
yes just get the sidekick data plans thats only for IM with aim and email.
Reply:yeah. with the sidekick, they have a plan only for that, and if you want to call and stuff you have to buy another plan. lucky for you.