The concept of it is quite good, but in real life (maybe it is just caused by my two devices..) it is, how i wrote - "unusable". My C6 is really really slow - and that makes the multitasking unusable. If you have some other device - and it is working quickly, than Ok, you are lucky man...
well, I would take symbian v7 with UIQ on 2010+ HW any time