Here are some Black Friday deals for smartphone medical apps:
Skyscape: save 20% on all medical apps!
PEPID: save up to 80%
With Unbound Medicine: Shop between now and December 1, 2010 and take 10% off all products. Use promotional code WEB10. http://www.unboundmedicine.com/
Don't forget about Epocrates, Lexi-Comp, and all the others. They could be having some incredible deals as well.