Looks like the next firmware update is coming soon and along with it, game recommendations for Sony's PlayStation Store. According to the PlayStation Blog, the next firmware update is due out by the end of this month, just a couple more days.
The recommendations list appears whenever you're perusing a particular game. It shows up on the right hand side and lists additional purchases of other PSN members that have also bought that said game you're supposedly looking at. Just like what Amazon and every other online retailer does.
In addition, a PSP update will be coming soon. Firmware 6.31 is a minor update according to Eric Lempel, VP of Network Ops in North America, and improves system software stability.