the line count wasn't intended as a brag. Yahoo! worked on cleaning up the source code for 9 mo in prep for open source release and in the process reduced the size from 700k to 300k
Also, the long term goal is to remove more from the TS "core", and move that out to plugins, so the core will be sleeker. Of course, we'll also add on new features, but hopefully many of those can be implemented as plugins as well.