Yeah, that is a problem, but they say in the Apple site that you can open it up by removing the back. Maybe it can get some expansions like RAM (much like the G4 iMac can)

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-