Yes.
About $15
No, Since the software they use is from Microsoft. You can only get it on Steam. (PC)
yes
2013 between March and May
Yes. Windows XP, Vista and 7 are all supported. You can also play it on Xbox or on the PS3.
it's past 1.2 it's 1.2.3.1
i think it will come out on the 1st of november (i cant waiT)
Nope. At least not yet though (don't be sure it will come out though).
There are things going around it will be released on the ipod touch just like minecraft was so it may come out but terrariacraft is an app for terraria its 99 cents tho :/
Terraria happened in 2011.
No, the PS3 slim does not come with a game.
Search "Terraria invedit" on youtube.