Yahoo IM and Google Talk, both are getting major upgrades. Yahoo says its IM with voice is now out of beta and has published a list of 180-odd plugins that work with the Yahoo Messenger. Nice to see Pando right at the top of the most downloaded plugin list. This plug-in strategy seems to be working for them. Michael has rest of the details. Google Talk has a lot of new features, and the “Leave Voicemail” feature looks the most interesting to me.