Super light - I've used my Droidlight twice in 6 months. Nice to have, mostly irrelevant.
Long lasting battery - non-Droid hardware issue, and it's relative
Powerful - outside of running Excel spreadsheets (and why would you on a 4" screen?) the Pro will be plenty powerful enough
Excellent screen - could use a better display in direct sunlight, but I'm never going to do most of my browsing/video on a 4" screen
No sense or blur crap - ???
Durable - again, relative. My Droid seems pretty durable. You wouldn't drop you computer and expect much, and the Droid is far more durable than that.
Excellent speaker technology - bluetooth, but I've always wanted a speakerphone that works as well as, like, a real speakerphone.
Better camera - this is the 1 point I'd agree with. I don't carry a camera and never have it when I could use it.
Way better storage - again, relative and non-Droid hardware. More than enough storage currently outside of photos, music and video, and the next gen 32gig cards mean only packrats need more.
2ghz and 2 gigs of ram, with say 64gig storage is pretty much the useable plateau, IMO. That's basically where computers were just 2-3 years ago, computers that are just fine for anything short of video editing and power spreadsheets.
You can make arguments about graphics and gaming, but then you are getting into a relatively small subset of users who's likely preferred device doesn't involve a 4" screen. HDMI and wifi/bluetooth/networking makes that a non-starter, IMO.
In 2 years, maybe sooner, smartphone capability will be exceeding demands of 95% of users. Now, in terms of becoming a personal home computing center, maybe a bit longer. Well, and I suppose you could say 3G/Wifi over the cell have a ways to go - a device that can stream (and maybe share/send the signal to other devices) hi-def movies is pretty much the tech plateau for most users, IMO. But that's more about replacing home broadband than cell phone-specific arguments.