No.
Ken Kutaragi He is known as "The Father of Playstation", and its successors and spinoffs, including the playstation 2, playstation portable, and playstation 3. see related link
The related link from the Playstation Knowledge describesHow do I connect the PlayStation 3 computer entertainment system to the Internet?
lala by invented the pspKen Kutaragi is known as "The Father of the PlayStation", and its successors and spinoffs, including the PlayStation 2, PlayStation Portable, and the PlayStation 3. " See related link
No. PlayStation 3 games are not backwards-compatible with the PlayStation 2.
No as the PlayStation 3 Blu-Ray discs are too large to fit in the DVD slot on the PlayStation 2, although you can play most PlayStation 2 games on American PlayStation 3's and around 50% of PlayStation 2 games on European PlayStation 3's.
PlayStation x PlayStation 1 PlayStation 2 PlayStation 2 slim PlayStation 3 PlayStation 3 slim Coming soon - PlayStation 4
No you cannot get Skate 3 for Playstation 2. Only compatible with Playstation 3 and Xbox 360
Uncharted 2 Among Thieves is rated T for Teens. see related link
No
Ken Kutaragi "The success of the PlayStation led to him heading up the development of more consoles like the PlayStation 2, and the latest console in the series, the PlayStation 3." quote about his contribution from related link
No, you cannot link different consoles' account systems with the PlayStation Network.
The original playstation, playstation 2, and even the playstation 3 were all made by SONY.