Some missed news while i was away from bushing:
I’ve had a few people ask about this — the way that I found out what titles had been updated was using Marcan’s nifty tool, wiimpersonator:
http://wii.marcansoft.com/wiimpersonator/reports/
It’s a collection of Python scripts that attempt to emulate an actual Wii’s update check process, and then generates reports to show what changed, eg. 20080617-030018.log and 20080617-040048.log.
It’s pretty neat; I’d say it’s the spiritual descendent of e.g. roto’s http://mozy.org/wii/old/index.html
http://hackmii.com/2008/06/wiimpersonator/