I wanted Cross Save big time and it is now confirmed to be part of the game!  I just hope I wont have to buy all 3 of the games (The PS3 bundle and the two Vita versions) completely separately to enjoy this feature.  Come on Bundle!

From IGN:

Final Fantasy X HD and Final Fantasy X-2 HD will support cross-saves, according to the game's director.

Final Fantasy X HD and Final Fantasy X-2 HD are due out on PS3 and Vita sometime later this year; earlier this week it was revealed the games are set to get a new 30-minute ending sequence.

Full article:

One of the biggest problem I had with FF X was the ending.  I am very curious on what they will change.

Greedo will shoot first?

Cross save is a good feature

Very happy about cross-save, now I can buy it twice (only FFX) without having to spend nearly 300 hours on it

...new ending?

Hmm, hmm!!!! Intrigued. And can't wait.

Nice to see this feature included. What can they really change about FFX's ending since it pretty much sets up the plot of FFX-2?

I want the Last Mission........where is it.

In there, luckily!

I've heard it adds quite a lot to FFX-2, can't fucking wait.

Absolutely.  There should be a good bit of new content.

It amazes me that this is by far my most anticipated release in all of gaming, New Console included. 

Cross Save just straight up made my day today :)

It's FFX! The game that turned me to JRPG's. And soon, the one to turn my girlfriend to them from just Pokémon. Worth replaying infinitely, say I. And I've yet to get some FFX-2 endings, and international content... so :D