When a popular franchise takes its sweet time to come to a platform, the knock-offs can take advantage of it. That's basically what StormBASIC are planning with Dynogems on PSP Minis.

Dynogems is already available on the iPhone and will pop up on PSP minis on December 3rd, and is essentially a knock off of PopCap's AstroPop currently on Xbox Live Arcade. It does a pretty good job of it too, and with PopCap having no plans to bring anything to the PSP currently, it will do quite nicely.