Ugobe just informed Pleo fans that the Pleo is delayed again. This time its the battery life.

Ugobe says that during pre-production testing they encountered issues with how long Pleo runs on a charge.
Now Ugobe is changing the Pleo design and are adding an easily removable battery and an external charger for the battery.
This design change will delay production. Ugobe says that they are working hard to make sure everyone who has ordered a Pleo will receive one by the holidays.
The plan was to ship Pleo in October.

Ugobe had already delayed the Pleo twice. First in summer 2006 and then in February 2007.
See also the Pleo site.