There seems to be an argument going on between the GPE developers organized at linux-to-go.org and George of handhelds.org. Handhelds.org is the site which hosted GPE before linux-to-go was founded and George claims (US) trademark rights on "GPE" because he runs the site (handhelds.org) which hosted (a project called) GPE first.
The full story is on Nils Blog at Linux-To-Go
Personally I think it's best if most people ignore the (legal and verbal) fight and concentrate on writing software. I have no clue about (US) trademark law (and IANAL) but I don't believe George or handhelds.org can do any harm to the people who wrote GPE and invented the name. (They seem to have gathered all at linux-to-go.org).
I'm posting this here for the people who wonder why handhelds.org is abandoned/dead/strange and hope for a great GPE release from linux-to-go.org.