What is flawed? Plenty. Given that Canon does in fact have competition in the digital camera industry, and that competition has actually been making progress instead of tweaking a 5 year old design. Specifically, Canon needs to address the following:
- Lousy AF system by todays standards. Needs more AF points and more cross type points.
- CMOS needs updated using Canon's latest microlens and photosite technology to yield better IQ/DR. It also needs at least 10MP to be competitive.
- Weather seals. To the guy that said it won't happen, don't bet on it. If Pentax is offering seals on a <$1000 body and it's on the Nikon D200, then Canon needs to get with it.
- Seriously horrible vertical grip design.
- Better batteries
- Dust shaker (not that it's essential, but again....competition)
- ISO50 & ISO6400...maybe. At least better noise control on ISO1600~3200 ala MKIII.
- +/-3 stops for exposure comp
- Better than 95% viewfinder coverage (actually, a completely new viewfinder would be a good idea)
- Some full time indication of ISO setting without going to a menu
- Fix the memory card door problem (ala MKIII)
- ISO priority mode (like Pentax)
- User setting memory
- Single, user programmable, hard button (like Nikon)
etc. etc. etc.
Point is, there is PLENTY left to update on the 30D.