PuSH is for Server to Server and does not address NAT issues. Until this problem is solved I dont see how it can replace something like Twitter which is becomin

PuSH is for Server to Server and does not address NAT issues. Until this problem is solved I dont see how it can replace something like Twitter which is becoming a protocol of its own. If you also consider the ability to search and filter twitter (even by location) it is a ways ahead of RSS and ATOM