Neil Versel's Healthcare IT Blog has some interesting coverage of HIMSS because of his podcasts of interviews with the  CEO of  Athena  Health and HIMSS  Analytics. Quick Blog: Blog Administration
HIMSS 07 Online Daily has some major stories including coverage of the keynote speakers.
The Healtcare IT Guy has a nice review of Tolven PHR open source running on a smart phone (more on this later).
And Medical Connectivity Consulting has some product reviews including COW, computers on wheels and the buzz about connectivity.
Also, check out Flickr for photos and YouTube/Google Video.

Technorati: HIMSS