I agree with you, Unfocused, that APSC isn't going away. It's the new 35 mm. Quality is good enough for most folks including myself.
I'm generally a defender of Canon, but I am really having some doubts about their lens division. I'm just not sure it shares the same vision as the rest of the SLR unit. Seriously, look at the lenses they've chosen to introduce over the past few years: updates of massive supertelephotos that fill a tiny niche market, a nice quality 70-300 mm L zoom that the jury is still out on whether there is any market for it; a specialty fisheye zoom that also fits a narrow niche audience and which they can't even seem to bring to market anyway.
In the meantime the SLR division brought out the 7D and 60D, two higher-end APS-C bodies, and aside from the 15-85 mm zoom, there have been no corresponding lenses released.
Imagine the sales jump they'd have if they introduced an EF-S 100-400mm f4? Lighter, faster and about the same price as the current full frame 100-400. Sports and wildlife photographers would be lining up to buy that lens and 7D combination. (Now before all the nitpickers start picking away, this is only an example of the creative options that the lens division could be following if they were to get with the EF-S program like their SLR brethren have gotten with the crop sensor program.)
I have to wonder if the lens division needs more forward-thinking management.
Well they did put out a few consumer zooms like 18-135 and 18-200. Yawn. The 60/2.8 macro is pretty nice though. Goes to show that Canon aren't opposed in principle to EF-S primes.
Still sorely missing is a cheapo 30/1.8 Hello, paging Canon? Must counter Nikon on this??
17-55/2.8 IS is a nice lens but it's hideously overpriced. It should be around 700 bucks. I'm thinking about selling mine.
Now that Tokina and Sigma have discontinued their 55-135/2.8 and 55-150/2.8 respectively (OS version on the way supposedly) there's a gaping hole out there for a quality 55-something portrait zoom lens. IMO an EF-S 55-135/2.8 IS is sorely needed. And this lens shouldn't cost more than 1200 bucks.
FWIW, 100-400/4 would have a 100 mm front element regardless of its imaging circle. Huge size+price jump. Sigma's new 120-300/2.8 OS has more than a few folks salivating though. Now there's a sports+nature lens.