...still be able to text,internet,a? i have a sidekick 2008 but i want to get a blackberry bold 9700 from tmobile but my dad does not want to switch my data plan, so if i buy a blackberry off of ebay and then i put my sidekick sim into the blackberry will i still be able to go on aim,use texting, internet, get apps, and etc. without upgradeing my plan?