It detects hidden processes using three techniques:

1. The proc technique consists of comparing /proc with the output of /bin/ps.
2. The sys technique consists of comparing information gathered from /bin/ps with information gathered from system calls.
3. The brute technique consists of bruteforcing the all process IDs. This technique is only available on Linux 2.6 kernels.

And the reason that we were able to make so much traction - because this is the first real test of the value of Windows - the reason we were able to make so much traction on this particular space is because we went to retailers and said, "Hey, what are your return rates on these Linux netbooks that you are getting?" And they said, "Oh, gosh, they're, like, four or five times higher than what we're seeing on other PCs that have Windows." I said, "Exactly." So let's do the TCO story. Let's talk to customers. And you can't find a retailer - I challenge you to find a retailer who wants to sell Linux on these netbooks, because the returns are bad. The customer complaints are bad. And our ability to really showcase the value proposition with Windows has never been greater and was never tested more than it was with this particular product. But we've made great progress there, but the up-sell opportunities with Windows 7, because it runs so well on these low-end laptops, is going to be tremendous for us.