Looks like this thing won't fly... No expandable memory slot like SD cards. All content purchased only from Amazon will be stored in the cloud server for free. Other content bought from other sources like Android Market may require a fee.

No AVI, DIVX and MKV support...

Content Formats Supported: Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively, Audible (Audible Enhanced (AA, AAX)), DOC, DOCX, JPEG, GIF, PNG, BMP, non-DRM AAC, MP3, MIDI, OGG, WAV, MP4, VP8.