We use Google Apps and Highrise. Now, they are both decent tools, the problem is that they do not integrate. Most particularly, keeping GMail contacts in sync with Highrise is a huge problem. Now, add LinkedIn to the equation, and everything blows up for me.
I'd just like some kind of tool that connects the three together. Some kind of social CRM SaaS that also integrates with Google Apps. Is there something like that? If not, could someone build it overnight? :D (I would do that, but I already run a software startup, and one project is enough!)