Are you alluding to something Mr. Indestructible? Skyroam looks interesting. I may do a review on that in the future.
Technically yes, you need a JB to make phone calls, but not a JB to receive calls. That said, to make calls, send text, and use GPRS you need to JB.
Gprs GPRS is way too slow I stopped using my Peel T188 because of that. I bought a mifi and bell tablet plan and too all my texting and phone calls over skype. I get 7meg down and 4 meg up, everywhere now.
Which is 2/3 times the amount you were paying before... Now the question is: is the lower cost of the data plan worth lowering speed? That question is 100% subjective.
C apple peel far more better than this one =) trust me, i'm using it right now, it has EDGE,thinner than raisoo & yosion peel 520 but no dual sim =)