Sure it would have been nice -- but I bet you didn't even think it would be nice until you saw it in action on a newer device, right?
I mean, c'mon people! Hey, you'd better hold off on buying that brand-spanking new 4G iPod, because we all know you're going to come back here and bitch and moan about how it doesn't have all the features of the 5G iPod.
Sheesh. You loved your 2G and 3G iPods, but now they suck and you're angry because they don't incorporate features that newer hardware does? Does that sound logical? I mean, hell, I wish my 1997 VW had all the features of the 1998 model, but I bought a 1997 model, not a 1998 model! Where on the box or in the instruction manual does it say that the iPod will be updated with the latest features of future models? Oh, right, it doesn't... so why are you so jealous and mad?
Just because a company CAN do something doesn't mean it will, nor does it mean they are withholding stuff just to be mean, nor does it mean that they're completely profit-driven and want only your money. Every other company in the world does this same thing. It's time to face it... you own older hardware... yes, you are now the proud owner of older hardware. It was bound to happen at one point or another.