Harry Joseph 
, Jul 30, 2009; 11:32 a.m.
DSLRs have now incorporated some features that were standard on PAS cameras like Video and Live View. What I would like to see Next is an automatic viewfinder grid like I have on my point-and-shoot.
This thing is the best thing since slice bread. As a matter of fact I thing the automatic grid is more inmportant than the other 2 features. To me anyway.
Yesterday I went out taking some scenic shots. If it wasn't for that automatic grid, half my pictures would have come out crooked. You don't know how tedious it is to correct crooked pictures in Photoshop. No more expensive bubbles that you are bound to loose, or heavy tripods to get your horizons straight. No more sending your camera to the shop to get an expensive view finder grid installed. just push a button and you have a grid right infront of your eyes is that simple.
Matt Laur 

, Jul 30, 2009; 11:38 a.m.
I've been enjoying the in-finder grids (which you can turn off and on at will) on my 2005 Nikon D200 and my more recent D300 for some time now. Yes, they're certainly helpful! I don't know the Canon line well, but these are features that have been long present in pro and pro-ish SLR bodies.
Harry Joseph 
, Jul 30, 2009; 11:57 a.m.
Excuse my ignorance Matt. Whats' up with Canon?
Daniel Flather 
, Jul 30, 2009; 11:58 a.m.
How about a an IR/red focus lamp. Just like when I have my 580EX2 mounted, but built it in to the body of my 50D. My EOS 5, ten years ago had that, wtf Canon?
Crooked photos, that's what Photoshop is for.
Tommy DiGiovanni , Jul 30, 2009; 12:13 p.m.
the 5D2 has a grid in live view now that you can easily turn on.
Jamie Robertson , Jul 30, 2009; 12:17 p.m.
I agree about the IR/red focus lamp. Many SLRs had those and they were a real winner. I would really welcome that.
I would also welcome an articulated screen for those ground level shots.
I think my 5D2 already has the grid display when using Live-view but I never use it.
I think the biggest thing Canon users are looking for is true long range wireless ETTL flash control. I want to park my 580EXII fifty yards away and I want it to fire wirelessly when I press the shutter and I want full remote flash metering control too. Surely this is possible to design these days (doesn't Nikon already have a similar system?).
I also want the HD video feature to be 24fps and I want full manual control of the exposure (aperture and shutter speed).
I also want a really clever auto-ISO mode with more flexibility to fix limits, the 5D2 already has a clever one but it could be better.
Arief Novisto , Jul 30, 2009; 12:26 p.m.
What Matt meant is that Nikon's has built in grid that you can see on the viewfinder, this can be turn on and off. I saw it on my friend's D90, nifty feature. With Canon I had to replace the focus screen, it's not hard but Nikon's solution is more elegant.
I would propose more aid, such as audible warning if the frame is not level. Most cameras already has an orientation sensor so adding this would not be too hard I think.
Songtsen Kampo , Jul 30, 2009; 12:29 p.m.
"in-finder grids (which you can turn off and on at will) ... have been long present in pro and pro-ish SLR bodies."
And now at entry-level too according to Mr. Google (D5000 and D3000).
Tom Harvey 
, Jul 30, 2009; 01:16 p.m.
Years ago I had an autofocus film camera (35mm), and if you pressed the shutter button halfway to get the AF assist beam, it would also change channels on my TV.
Puppy Face , Jul 30, 2009; 01:38 p.m.
What I would like to see Next is an automatic viewfinder grid like I have on my point-and-shoot.
Both my 50D and 5DII have a grid in LV. In fact you have a few choices of types of grids. It's not "automatic" as you must enable it. I prefer to leave it off most of the time but it can use useful for some types of photography.
You can also buy a grid screen for the optical VF. I prefer a plain matt as any marks are distracting.
What I'd like see next are a return of ECF and shiftable DEP mode. Both of these features I used constantly on my EOS 5 in the early 90s. The joystick just ain't the same and either is using a DOF chart...