Yep, that's exactly what this is all about in the end, it's Microsoft wanting to name their future store just what you said, it's not about using generic terms, it's Steve Emballmer's own jealousy of Apple's success and MS's lack of exciting their customers anymore. It's bad enough they had an extremely lackluster appearance at CES.
The height of maturity is namecalling, right? Really? Steve "Emballmer" And you criticize Microsoft for being whiny/petty/etc? Oh please. Ask yourself - how much does it/will it affect you regardless of the outcome. Who cares what the store is called or referenced at?
MS wants to do this to ride on the market penetration of the brand "App Store". It is now in the world's lexicon, as is "App". This is why TV makers are using it too. Was there a single TV before the iPhone that marketed Apps. The answer is no. Microsoft wants to do this to dilute brand recognition in the marketplace. That alone is proof of Apple's development of a brand identity with the App Store and "App", and why Android and Microsoft want to knock it down. If Apple had instead created the Widget Store, and it had the same market presence, then Google, Rimm and Microsoft would all be saying, instead, that they had a Widget Store too, and we now sell Widgets for our phones, as would the TV manufacturers. They would have zero interest in "App". But "there's an App for that" is a juggernaut they all want a cut of.
You act as if Microsoft is the only one that this affects. It's not. If Apple succeeds - then all of these other companies can't use App Store either. It doesn't matter if it was MS or Samsung or Toshiba who brought the issue up. The issue has been brought up. And personally I see very little reason for excitation on this board except for those that want to insist that Apple is being targeted by spiteful MS. As if it really matters to the consumer. It doesn't.
The question that could be raised as whether or not this breeds confusion in the marketplace. And I don't think it does. Apple will say it does - because that's their STOCK answer as to why they keep their walled garden walled. And that works for them.
But if you own a iPhone - you're not going to be confused by the MS App Store. And if you have a MS phone - you won't be confused by the iTunes App Store.
Apple MIGHT have a solid case if there was bound to be consumer confusion. I see none.
But this thread is nothing unique. These arguments/reasons/etc all get repeated over and over. The topic might be different. The arguments/posts are always the same.