Originally Posted by
Tintin
Which Sony model is you are refering to?
I like to buy one very light very powerful (64 bit, w/ 8GB RAM) with 10+ hours batter life

. Oh! Well!
Tintin
That was the old Sony TZ series. Being so tiny, there were performance trade-offs so no way were you getting a system to the specs you've listed.
It's been a while since I looked at Sony so I checked their website and it seems the TZ series isn't made anymore. I see a Z series but it's not as tiny as the Tosh or Lenovo.