The point is that it's Android+Ubuntu vs just Android. No sane user who would even consider iOS as preferable to Android would consider buying Android+Ubuntu over iOS. You're paying extra for the "+Ubuntu" part of that string, plus some computing power. If it did run off of a processor other than ARM, that would make it a bit more interesting as a phone, because it might be able to handle 10 bit better... but who knows?
Except Ubuntu is free and has always been free. I doubt any extra would be going towards Ubuntu, but rather towards the hardware. Note the specs, and compare to Samsung's GS4, which I think would be somewhat similar to the Edge. Then compare their no-contract prices. What do you notice?
I believe someone had a relative price breakdown a page or two back (though I believe that phone was even more expensive than the GS4, although I wouldn't know for sure), go ahead and look at it. Also, Ubuntu being free is true, but that doesn't not equate to what they're selling (Android+Ubuntu on a phone). Go ahead and figure out the numbers.
As for better specs... honestly I was more than satisfied with the 2GB of ram and the processor on my GS3. Both were more than enough. Most of the limits I was encountering were software/architecture related... throwing more gigs of ram or cores (of the same speed anyway) is especially pointless, considering Ubuntu can be fairly lightweight to begin with (well granted I work on a console interface Ubuntu). Plus, IIRC the screen is 720p... you're not gonna play 1080p on there anyway, even if it's able to. That's a bit silly. Plus, if they go towards more cores instead of faster ones, it depends on how well the parallel processing capability is taken advantage of.
Oh and
did I mention the battery? Good god I hope this thing has an insane one, because it dual boots Ubuntu AND Android. Android by itself was a nightmare for me to contain. I had to root it and then weed out all battery-killing apps and bloatware and change the kernel to use
LESS OF THE CPU, SINCE IT WASN'T EVEN NEEDED MOST OF THE TIME.
Point is unless you're actually going to use this thing to replace a laptop (which I wouldn't; aside from wanting Windows, my laptops have to be able to play video games... not Angry Birds or whatever the fuck it is people do on there), it's pretty pointless. I think you'd be better of splitting the money on a slightly worse phone and a good netbook/laptop (the latter of which you won't have enough money for, but it'll be a start). Perhaps it would be a good portable dev station, since you can put do SSL through it and code perl/php whatnot on it without much issue... supposing you can access your company's private network from somewhere. Eh. Don't see much point for it beyond that. It doesn't have the specs for even the Steam games that are on Linux.
Okay I think I've made it clear I see no use for this myself, that's just two my two cents (spread across 4 posts...).