http://www.dreamfabric.com/c64
It’s True! A C64 based emulator in Java. The link contains a few games you can play, my only gripe is that the keyboard mapping doesn’t seem to be too laptop friendly (or is it that the way a laptop keyboard tries to overlay a numpad isn’t friendly to begin with?)
Paradroid, Wizard of War and a few other classics available when you want a quick C64 fix 🙂
Found via Holy Shmoly!