They really are Playstation Network ID's and I don't even know if I would count hillbilly as similar. Most people just add a number or letter if an ID is used already. A person would need access to restricted account information to be able to answer the question after they decided what was similar
Just Cause 2
no
Landgrabbers
we do not have gamerscore but we have somthing very similar called trophies
No why would the PS3 play a Wii Skylander. It would play a PS3 Skylander's Spyro's Adventure Starter Pack for the PS3 or something similar designed for the PS3
Yes the PlayStation 3 hasa similar app for European users which is called VidZone.
No. Just use a component cable or similar
Yes, they have tropies which are similar to the xbox 360's achievements.
iv heard that crysis is similar but i doubt it
yes they are very similar
a lot my ps3 name is johnfilikepie
Yes, there are many skins available. Simple search for "ps3 skin." There are many options, such as the Batman: Arkham Asylum Skin for the PS3.