I'd like to dedicate 2 or 3 percent of my laptop's storage to keeping a cache of parts of wikipedia... say... all the featured articles, plus all the articles within 2 hops of my user page and within 2 hops of the page about me, plus every wikipedia page that I have accessed in the last 2 or 3 months.
The trick is that I don't usually use my laptop; I use a desktop machine. So running a cron job on the laptop won't work. Maybe I could remember to "wake up" the laptop 3 days before I travel to give it a chance to sync.
Or maybe I could keep the wikipedia cache on a flash drive and move it between desktop and laptop machines.
I guess I'd like to cache more than wikipedia... w3.org, stuff from my delicious bookmarks, family photos, etc. hmm.
The local library should run a wikipedia cache too.... though... I wonder how nearby in the network they are. If they don't use the same ISP, I can imagine the packets getting routed via the east or west coast. Their geographic proximity suggests they should share some sense of what pages are important to cache.
-- Dan Connolly, W3C http://www.w3.org/People/Connolly/
