Remember MobiBLU? They made what was touted to be the smallest MP3 player in the world back in 2005, and here we are with an updated version which comes with a full color OLED display, crammed into its 1″ x 1″ x 1″ footprint. Targeting a US release this May at $99 a pop, the Cube3 will feature 2GB of internal memory, support for podcasts, MP3, WMA and WMA-DRM files. Its rechargeable lithium polymer battery offers up to 10 hours of playback, although I tend to take marketing claims with a pinch of salt. Will this dent the Shuffle’s sales figures?