Currently Sony has only hinted at this, no official announcement has been made.
No it means that the PlayStation network will let you download PS2 software
You can not. Some PS2 games can Play Online when the game is in your PS2 and you are connected to the PlayStation network.
No the PS3 when it is connected to the Playstation Network
No the PS2 games are designed to be played on a PS2. The PlayStation 1 does not have the capability to play the PS2 games and that is because of the complexity of the PS2 games. The PS2 can play the PlayStation Games as can the PS3. Certain PS3 models with 4 USB ports can also play the PS2 games as shown on related links. The link can also provide more information on the Sony PlayStation and PlayStation 2.
No the games for the PS2 do not work on the original PlayStation that the PS2 replaced
Only the old first couple of PS3 models with 4 USB port could play PS2 games all models play PlayStation games. New PS2 models tell on the Box they come in that they do not play the PS2 games, but there are plenty of used cheap PS3 games
No the Playstation does not play PS2 games
Older PS3 Models with 4 USB ports will play PS2 games as seen on related PlayStation network link. All PS3 models with only 2 USB ports can play PS2 games via an update on playstation network, except for the CECHH00 model. All models of PS3 can play PS1 games with software emulation.
no you can't sorry mate
No the PS2 games are not free at the Playstation Store and they are not the original PS2 games but are reworked to Play on PS3 consoles
no, but you can play playstation 1 games on a ps2
Refer to this list, which is a list of PlayStation 2 games that can be played online, as well as a list of games that can be played via a local network. List of PlayStation 2 network games From Wikipedia, the free encyclopedia has been added as a related link