It’s a fun an interesting project to make human beings do something that computers can do trivially. It may be a good reductio ad absurdum for people who think wiki is the best technology for everything.
I started the wiki clock in about 3 minutes before a session on the advantages and pitfalls of using wiki with other technologies. I amused myself so much that I put the page on TwiTter? (http://twitter.com/evanprodromou/statuses/70162092) and it got picked up by a few bloggers. The wiki clock is really the last recourse for bored wiki people; it always needs to be updated.
Although there is place only for one wikiclock, a wikiweather site might be fun too
I was thinking about doing a WikiCalculator?, actually. Like, each page would be a simple arithmetic expression (“10 + 37”), and the content would be the answer.
This might be more useful than it seems – especially with problems that are not easily solvable in automated ways, like calculationing integrals.