Yes, the Ugobe PLEO has been completely dropped from Innvo's support lineup for a few months now. Really a shame, never got to buy SuSe a new battery.
Just ordered 8 NiMh batteries from Amazon and will be making my own in a couple of days. I'll be sure to share the results with you all. :-) Thankfully, however old they are, PLEOs are some of the simpler robots to work with in terms of batteries.