Thankfully, so does Sony. This morning, the US PlayStation blog announced today's launch of several PSP games on the Vita (including Grandma's fave), as well as a variety of PSP Minis (full list after the break). As usual, if you already own the games digitally for your PSP, all you'll have to do is re-download the files to your PSN-tied Vita. If not, well, you'll have to pony up some virtual cash.
Interestingly, Sony also mentioned "improved playability" for some titles beyond the up-res'd graphics – we're checking to see what exactly that means. The line has since been removed from Sony's blog post.