errr... how can u compare a tablet with a laptop?
even now laptop also got touch screen laptop, also got lightweight (as light as TP?.. idk liao..) ...
for me... my personal opinion for table is:
portable/ lightweight... able to take out for travel... hanging out at starbucks..,
browsing, facebook, twitter... forums... portable media... etc..
at night..before sleep.. i can take my tab... gulung gulung at my bed... surfweb, etc...

(i can't did this with my Alienware..

)
game wise.. i seldom play in tab as well...
i got PS3, i got Alienware, and i got a lenovo S10 netbook (battery sudah mati)
and i bought TP as well... because i separate them with different usage..

and i see them all with different selling point as well..

in the end.. is base on your preference as well

I still find it hard to justify RM2299 on it, for that price, I can push in another RM300 and get a brand new ASUS latest gaming laptop GeForce 555 (2GB) an 2nd gen i5 proc) :S
and I find the tablet was kind of heavy as well after weighing it with the keyboard dock. Although it's definitely much more lighter than my laptop which stands at 1.5 kg (with batt).
Perhaps I should wait for the review on the new Prime TF700T which feature the 1920x1200 resolution, maybe I would buy that to play back my 1080p movies