"If you just can't wait for the major, forthcoming (no really) iRiver firmware update for it H-series of audio players, here's something to play with. Some intrepid Japanese hackers have created the iriver H Series Firmware Customizer (machine translation here). The application lets you tweak some of the look and feel, such as the boot display image. As far as we can tell, it only works on Japanese devices, so YMMV."
Hmm, looks neat but I don't know if I am brave enough to try it on my iHP 140. C'mon, one of you out there must have the guts.