Google Plus in the last couple of days. First reaction is that I like it. I can actually see a use for it, whereas Google Wave and Google Buzz seemed like solutions looking for a problem to solve. It's easy to use and navigate, and I like the idea of circles - groups of people you can share things with with different privacy settings. Hangout is a nice desktop video conferencing service that you can invite people to - we had five of us taking part like week - and you can share documents, presentations, etc and have chat windows open. Will be interesting to see how it integrates with other apps.
Yesterday I posted that I've now got Ehco360 on my mac, and I've been having a bit of a think about what to use it for. We've been branding it as lecture capture software, but this version is really personal capture software - I suspect it will be very useful for producing short training videos, demos of how to do simple things, or in my case, maybe some things that I would find easier to say to the team rather than write down - summaries of presentations complete with slides that I've given to outside bodies for example. Any other things you think it might be useful for, let me know.