Tools (SSMS, Agent, Profiler, etc.)
What I'd like to see is an option here to, instead of pulling an IP address/server name from a long MRU list, select an existing registered server (with a friendly name). This would make things more intuitive and also avoid having to re-type passwords multiple times. I don't have to type a password when I right-click a registered server, why do I have to when using Change Connection (unless the server I want happens to be the first in the list, and SSMS has decided to actually remember my password this time)?