Well, I can sum this up quickly by saying when Apple/Microsoft appropriated the point-and-click paradigm for UI design, they set us up for what will probably be many more decades of the mouse.

The good:

A lot of forward-thinking developers are out there writing applications that support near-100% mouseless operation, at least for the majority of functionality.  Some that come to mind are Gmail/Google Reader, Firefox, a good portion of Microsoft Office, VS, R#, and others.  Pair those applications with tools like SlickRun and you are a long way toward letting your mouse gather dust.

The bad:

The web is a huge offender.  I suppose it's too hard (when measured against ROI) to provide gmailish shortcut infrastructures to every web application.  That's a shame.  The web just fails miserably, on the whole, at being keyboard-friendly.  Sure you can do most stuff with just the keyboard, but the barrier to productivity combined with the nonstandard distribution of interaction elements (can I click that picture?  is it an image map?  is this a link?) just makes it more frustrating than it is probably worth.

Social applications of any kind are pretty much bad at keyboard.  I don't use GTalk so I can't comment on that, but AIM and WindowsLive are hard on the keyboard.  Facebook, MySpace, and Linkedin fail as keyboard-friendly websites.

Designers.  Designers are, and likely always will be, satan.  Drag + Drop is a fast way to put the buttons on the form, but sucks for keyboarding.  However, you can batch this functionality all into a single-shot of mousing then F7 and go back to the code.

The conclusion:

All in all, I learned a lot about my keyboarding habits with this experiment, and moreover, I learned a lot about my productivity (anti-)patterns.  What I mean is, in a given day I'm being more productive (generally speaking) if I'm using VS with R#, Gmail/GReader, a little Office, SQL management studio (fairly keyboard friendly for what I do anyway), and various other apps that are pretty much what my job is.  I start noticing the keyboard pains when I venture out of the productivity zone (myspace, msn messenger).  For this reason I've been able to take a look at my daily software usage and match my productivity continuum pretty closely to my keyboard-friendliness continuum.  Weird eh?

So, I don't think that we are at a place where a normal (or abnormal) user of modern computers (read: web user) can hope to efficiently go mouse-free (natively, without third-party software).  The good news is that those of us who make our living in the millions of keystrokes, there is a lot of support being built in to developer applications for leaving the mouse on the charger, and that will undoubtedly go a long way toward letting us type a few million more lines of code in our careers before we watch our hands clench up and die.