i think you might want to look into NXT.... they have everything you need and its quite under the radar at the moment with active development. they just have a problem marketing themselves...
You forgot to mention that the decentralized voting system allows for asset issuers to create polls where only asset holders can vote based on their balance. i.e.
http://nxtportal.org/polls/1407765120236853374Yep, could already do that with Bitcoin for over a year.
Just about anything these alt coins think they're bringing to the table can be done with Bitcoin. And it has the benefit of the network effect and it's the most secure ledger in the world.
I am looking at Bitcoin solutions. Not alt coins. Every NXT person I have talked to basically wants Bitcoin to fail.