Yeah, I think that is indeed one of those PSP button stick-on.
The review was quite acceptable (with a few quibbles here and there). Although I am suprised that the stylus got praised, and no mention of it not having a proper place to store. As for the software side, too bad that aside from the emulators, the rest were just the built-in stuff. However, I am amazed that the "Tate" mode was mentioned. The mentioning of it being open source, but not saying much about the homebrew stuff as a result of being open source, is indeed such a shame.