All the ads showing features for the PS3 state Online connectivity requires broadband internet service and network devices such as a DSL or cable modem. Most people who have this also require a router and an ethernet cable or a wireless router to allow connection of more than one device to there internet service. Once the PS3 is connected with an ethernet cable or you have a wireless router then you go to the PS3 main menu settings and then the Network setting then network connections.
Wi-Fi internet? yes it does and wireless controllers & headsets.
ps3 80 gb.
Yes.
ofcouse!
no
it cost $400.
More memory, that's all.
No it can not
Yes.
40 gigabytes
In the PS3 it is the smallest size that came with WiFi
The 40GB system has not been new for some time, see timeline in related link.