I noticed that Playstation All-Stars is up for $10 for the PS3 version currently, but there is no discount for buying it on Vita. I do not own a PS3. If I bought the Ps3 version of All-Stars via the Sony Store in my browser, would that allow me to download All-Stars on my Vita? Sorry if this is a little confusing, but hopefully I can get an answer soon. Thanks!

@pazdaemon: It should tell you that it's Cross-Buy in the description text for the PS3 version in the PSN Store. In the EU store it says:

Cross-Buy

• Purchase the PS3™ version of this game on Blu-ray Disc or from PlayStation®Store to take advantage of Cross-Buy – you’ll be able to download PlayStation® All-Stars: Battle Royale for PS Vita at no additional cost.

@blacklagoon: for some reason the US store description is really vague about that on this game, and the PS.Blog post even says PS3 only when other clearly say cross-buy.

But yes OP it is indeed cross-buy according to people posting in the blog.

I was looking to buy it via the SEN website via the browser. On SEN, the discounted PS3 version didn't seem to mention anything about cross-buy or accessing the Vita version. I researched a bit more on cross-buy (again, don't have a PS3 so I am unfamiliar with that feature), and just ended up taking the plunge. Looks like the cross-buy is all in tact and I can download the Vita version on my Vita.
Thanks for the help!

Yes