The US version of the PSN Store has gone live, meaning that anyone with a Vita (there’s currently 40 people near me with one, apparently) can open up the Store app, browse, buy and play. Now.
Whilst there’s not that much content on there just now, it is open and things are working. There are some games on there, some demos and some videos, organised much like the Japanese Store is.
Oddly, some older PSP games aren’t yet available for download, presumably awaiting Sony’s updated DRM to kick in.
We’ll let you know (obviously) when the SCEE one opens…