After I dared to peek at one of the meego mailing list threads, I discovered that it's been reported that Meego is planned as uncompatible with other distros upstream, in several ways. This has been defined as a benefit.
Also, it seems that the devices incarnating this os could be even more inclined to the phone side than the computer side.
Of course, at present this is only speculation, like a married couple planning the hair and eyes color of their future kids.
But I'm not sure I like it

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Re: [MeeGo-dev] RPM vs DEB, the FAQ item?

On Tue, Feb 16, 2010 at 20:45, Auke Kok <auke-jan.h.kok@intel.com> wrote:
[...]
Also, it really doesn't matter either way. Moblin was never compatible with fedora (rpms) and never meant to be either. Nor was that ever intended: We want to bring highly optimized packages for mobile platforms to you, not generic desktop-focused packages. This means we strip out unneeded components in many places. That affects dependencies overall, and so no matter what packaging system is used - it will be incompatible with <deb/rpm/insertyourfavoritedistro'spackageformat>. (because we want it to be incompatible: it gives us a benefit).

And in a following message, an excerpt from IRC:
#meego 16 Feb 22:33 UK time

<auke> the ability to pull from fedora (e.g.) comes at a huge cost
<auke> we don't want to pay that cost for mobile platforms
<lbt> we say "this isn't a phone"
<lbt> "it's a computer"
<lbt> "but we're going to cripple it"
<auke> I rather see it from the other perspective: it's a phone, BUT we can make it do more cool stuff
<auke> computers have 102key keyboards
<auke> and 24inch screens
<auke> and a picture of your mother on the desktop
<auke> also, I really think that for most desktop PC's a /moblinesque/ base distro is more than enough
<auke> and I think everyone would love to have their computers boot in 5 seconds