According to Minnesota Public Radio's site today (11/24/08):
Total ballots recounted: 74.18 percent (2,166,181 of 2,920,214)
Recount votes for Coleman: 908,063
Recount votes for Franken: 889,891
Recount votes for Other: 363,852
Challenged by Coleman: 1,400
Challenged by Franken: 1,401
Percent challenged: 0.129306%
Notable are the two counties with the most left to recount: Hennepin (still about 30 percent or 140,000 votes to be counted) and Ramsey (still about 36 percent or 41,000 votes to be recounted).
Most counties are done counting or have completed 95 percent or more of their recount. A few are in the 80s (Dakota with nearly 172,000 total votes, Saint Louis with just over 94,000 total votes and Sterns with just over 75,000 total votes) and to others (Steele with nearly 1,700 total and Becker with nearly 4,400 total) are below 30 percent complete.
http://minnesota.publicradio.org/collections/special/2008/campaign/results/mn/recount/recount.php