Yes it does. That does not mean that it has a built in internet connection. You must still obtain an internet service and network connection devices for the service or to quote the ad "Online connectivity requires broadband internet service and network devices such as a DSL or cable modem"
yes
The PS3 slim with 120GB hardrive.
£249.99 $299.99USA
Yes the PS3 slim includes support for Wifi B and G
The Slim PS3 weights just over 7 pounds
Yes the ps3 has wifi built in.
The Slim PS3 not available in less than 120 GB and all PS3 have the capability of online play. One of the first PS3 a 20 GB model just did not have built in WiFi, but you could use an Ethernet cable or buy the 60 GB model with WiFi.
yes
The PS3 slim has 2 models one with 120GB harddrive and the other with a 250GB harddrive
Yes you go to the PlayStation Knowledge support center at the related link
A PS3 slim has WiFi and wired capabilities for internet usage. It will depend on each individuals internet connection as to the slowness of the PS3.
Only the ones redesigned for the PS3 and sold at the Playstation Store or on Discs saying PS3. The PS3 slim does not play any PS2 games