My only problem with going 100% Linux right now is some hardware
issues, which may change if future kernels, etc. fix them:

1. My samsung dvd drives won't burn, only play. I have Samsung
optical drives on 3 of my desktop computers. My Lite-on external
works fine.

2. My MS Lifecams won't work in Linux, but my Logitech webcams do. I
have 3 LC's and 2 logitechs.

3. Bugs in the GDM login sounds (can't add to one machine, and the
other won't play sounds at all during login.) Any altered wav shows
up as 0 seconds in the properties in Ubuntu.

4. And, certain sites for video chatting/broadcasting like Stickam,
BlogTV and all that, require Windows, even though it's flash-based.
*The main reason I haven't completely ditched Windows.

5. Wine is still a beta. I've found some windows stuff will run,
some not, and some partially. And they don't un-install completely,
meaning you have to disable them from showing on the menu.

Apps like the Desktop Cube of Yodm and Shock, give non-linux folk a
taste of the glories of Compiz Fusion. So they're good for demo
purposes.

I agree with Linus Torvald's opinion that the main obstacle to people
using Linux is inertia. I myself didn't really consider the move
until I had problems with re-activating winxp after *major hardware
changes* and trouble finding good inexpensive video-editing apps.

And even then, my first attempts at iso-burning were failures, so I
had to order some off Ebay. I picked up a Linux Starter's Kit (Suse
sled) from a bookstore, which almost turned me off completely. I
know better now, having tried over 30 distro's with some still yet to
be burned to disk.