Rounding out the ho-hum specs for all three devices are a USB 1.1 connection, SD slot, PictBridge support, and that old standby, QVGA video capture (thankfully it's at least 30fps), although so far pricing remains a mystery.
Other goodies here include a three megapixel camera (a nice bump over the two megapixel shooters found on the IM-R100 and IM U-MU110), PictBridge support for PC-less printing, MP3 playback enhanced by four-channel stereo speakers and an FM transmitter, plus that popular Korean add-on, the electronic dictionary.