99%
Even if Nxt does beat others to having an Asset Exchange I wouldn't really put that much expectation in said *feature*.
It will most likely be used by scammers to relieve people of their investments as has been seen many times with such attempts as GLBSE and the likes.
I very much doubt I would ever invest in any sort of "share" in a "digital corporation" which would presumably be anonymous and able to simply run off without a trace at any time (although I would be pretty sure that there are 100+ new "pirateat40" types just waiting for this to be ready).
Personally 1000 TPS is about 1000x more interesting to me than a P2P Asset Registry (which will not be recognised by law and therefore pretty much pointless).
In essense, a public company is a profit sharing social contract to its investors. It does not matter if the company shares are listed in NYSE or NXT asset exchange; it matters whether that social contract is recognized by prevalent laws of the local authority. In U.S there is nothing to prevent a written contract to be enforced in the court of law even without a presence of a proper lawyer. So in theory, a small company can have their charter clearly written, raise the funding and list their shares in a decentralized stock exchanges and have the enforcement falls into the purview of the local authority. It could work and could become very popular in the future.
That is a much bigger game we are after here.