Mobile music blog Palm Sounds is celebrating their 4th birthday in style, with a sweet mobile music-making synth cake.

I’ve got no idea what app that cake frosting is running but it’s pretty clear that there is some tasty mobile music making involved.

If you’re not familiar with Palm Sounds, its constantly updated with info on mobile music making and other cool topics.

If you’re in the camp that hates Synthtopia’s iPhone music software posts because you use some other mobile platform, check out Palm Sounds, because they have broad coverage of Palm and WinMo platforms, too.