[amelius]

> We (BitKeeper folks) did our GUI interfaces in Tcl/Tk years ago because it meant we could have one gui person and get the same gui tools on Windows, Mac, Unix, and Linux.

Ok, sounds reasonable. Except... now you have to hire another person to do language development/maintenance :)

[luckydude]

Now that's a valid point. So it's 2/3rds instead of 1/3rd but the guy doing the language is a languages/compiler guy (used to be professor at Brown) and he loves this stuff. So not a big money win but definitely a big karma win, he's having fun.