Well Tales of Graces for the Wii was basically a really buggy game. Now there's going to be a PS3 version which is basically the better version. Judging by how the Tales games that got "better" versions were Japan-exclusives we most-likely won't be seeing Tales of Graces: F - I believe that's what the name is - release stateside.
Tales of Vesperia's PS3 version had some added content including a new character. Still no word on a US release and the chances of that happening are pretty slim as well.
On the bright side we have a new installment to the Tales series to look forward to. It'll celebrate the Tales' series 15 year anniversary.
Ahh, that practice. Yeah, that's pretty annoying. I remember they did that with Tales of Symphonia too when they made the PS2 version I think; had new outfits and extra story bits too. It's certainly frustrating, but at least there are sites like Youtube so we can see what we're missing. It would be much nicer if Namco was more equal-quality-for-multiple-systems, though.
And yeah, there's that. I hear it'll be for the PS3.