Guyfawkes has released an excellent user guide for the GP2X, heres the info:
This is the first release of the user guide for the GP2X. It is currently only available in PDF format but an HTML version will be available shortly.
At over 30 pages, the guide contains everything from setting up your GP2X, installing and using software, listening to Music, watching Videos, reading E-Books, firmware flashing and an introduction to developing on the GP2X.
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