Sad day today as I read Joel Ward's blog at http://joelsef.blogspot.com/2012/04/rip-chumby.html. It seems that the end is nigh for Chumby. I followed up and found a few other sites stating the same thing.
In Joel's blog he mentions two projects which may help Chumbies to stay alive after Chumby Industries shuts down the Chumby Network.
Zurk's Chumby One/Infocast 3.5 firmware
Zurk's Infocast/Chumby 8 firmware