There's one thing I wish someone would develop.
I call it the Universal Admin. You'd just activate the needed UA modules for all of the scripts you run on all your sites. UA would reconfigure itself based on what modules were activated and then you could use the Universal Admin screens to manage your entire network without having to ever log into any other admin again.
On a typical day I may log into WordPress, Blogs Automator, TGPX, TubeX, LinkX, DragonList, OpenX, DadaMail, Joomla, LinksOrganizer, plus some custom scripts. With some of those there are multiple installations and logins on a variety of domains too.
It sure would be nice to log in just once a day instead of dozens of times.
Yes, I know it's just a dream.
P.S. I do use software which remembers my login details so I don't have to do much besides click the login link if I've logged out (and I usually stay logged in from day to day), but the idea of a Universal Admin is still very appealing.