I use a simple heuristic: would I feel ashamed showing the current state of the product to a new member of the team? Would he understand what has been done?

If it takes you more time to figure out how to hack the system to include a feature or to fix what's not working, then it's time to take a step back and clean things up a bit.

While it's easy to think you need "that special feature that will make all the difference", customers rarely care that much, but loathe to use stuff that works badly, or inconsistently.

Speed, polish and simplicity always trump full-featuredness.

Because there's no need to ship, I can drive by and pick it up during my lunch break :-)

well, never paying dividends helps with the cash thing too...

I agree, Sharepoint is an amazing product, but it still lacks some polish in the UI department, it's still pretty clunky. The good news is that Microsoft seems to have gotten religion on the subject, and they are improving fast.

apart that the above statement is just stupid, Microsoft is making money AND growing a lot more than the competitors, according to the numbers.

"Saying market is irrational is incorrect."

This is the statement of the century! You have proven wrong so badly lately that you should really say you're joking or something, just to save face.

I'm sorry, but I'm not familiar with that device.