Do I need a blackberry phone to use a Blackberry playbook?

Can i use my blackberry playbook on a straight talk phone?

• ok i got the blacknerry playbook and was woundering if i can use it on my straight talk at n t nokia phone ita called tehtering and i got my at n t sim card in but it wont even register the phone when i try to tether and yes they r paired i tried connecting under at nt broad band and isp cingular nut wont even find it is there a spwcific way to do it but it also says my phone offers not servicesso im guessing i nwed a contract version instead or what

• Answer:

  If your blackberry playbook is tied to a different provider, then the AT& T sim card will not work until you open the BB to accept multi network servicing.