My small review:
The Bad:
-NEEDS Better Filter for Mods. (good for chiptunes, I do however like SOME filtering...)
-SPC emulation innacurate ( CT: 3-14 Last battle, Most players get it wrong anyhow)
-sluggish/low responsive controls (Linux issue? how does it work in a GP2X)
-dark Colours. (the defaults should always be good; high visibility)
-directory contents do not display in some cases
-no true 'Stop playing' button
The Good:
It has played nearly everything I threw at it. Impressive.
Basic, but solid layout.
As a standalone Linux/Windows player; nearly everything else beats it.
As a TRULY standalone GP2X player nothing comes within a light-year.
(nor any other portable players except really small PDA's/Laptops)
4.5 Stars out of 5. To get that last .5 add Adlib, OGG and FLAC.