Hi David,
why dont you use Wimpy Point along with Jabber Groupchat instead of the chalkboard ?
And if the professor does not want to type that quickly, use voice recognition (or an outsourced secretary listening to the talk of the prof. and typing it into the computer.).
More seriously, I dont think dotLRN is the tool to replace the live classroom. Or should even try to intergrate it. But you might want to have interfaces to other tools, so you could at least search the data generated in that classroom. Which probably isn't much, if you think about live communication in terms of "voice".
