Three reasons: 1) The upgrade is for Maemo ARM targets in Scratchbox. 2) The repository in question isn't *designed* for the N800, just the scratchbox SDK - it's a side effect that most packages work on the device itself 3) Red pill mode isn't for end users. If you follow maemo-developers, you'll know not to accept an upgrade in red pill mode. If you've got red pill mode enabled and you don't follow maemo-developers a lot of problems will result.