Recover & Restore are the primary purposes of Backup, yet this seems to be mostly lacking in backupify - the only output I've seen so far is a rather inaccessible and (sorry) ugly PDF.

At the very least the recovery part should be provided by backupify as a machine readable format (e.g. XML) and a human readable format (e.g. HTML), that also allows for attachments (blobs essentially). So I would expect a nicely packaged zip file that contained a machine readable XML file describing the separate attachment files (e.g. jpgs etc) as relative links and including content that is sensible to store in the XML - e.g. the tweets, updates, profile info, file lists, links, etc. Then either XSL or even pre-generated HTML page that presents this in a nice pretty (and still accessible) way for the less technical of users, whilst leaving those that wish to use the data systematically to play with the XML file in any way they wish.

As for the restore, it is understandable that not all services are that supportive of this at the moment, but having a few options would be nice - e.g. if you lose your twitter account (password/accidental deletion/etc) and create a new one, it would be nice to be able to _choose_ to publish all your old tweets back out for historical purposes (albeit with the wrong time and date and on this new account) _then_ restore all the people you follow and possibly even give the option to DM your old followers to let them know of your new account. This is just as realistic a scenario as restoring to your current account because twitter lost your data irrecoverably (maybe even more realistic).

Additionally, I would think it beneficial if you canonicalise the data in the backup to allow you to restore to a completely different service - e.g. identi.ca, google.me (if there ever is such a thing), picassa, linkedin/plaxo, etc. Which is another great use case example.

I haven't been able to see what the google apps restore/recovery features are like as it is still processing the archive, but I hope it is better than the social media services.