I currently use IMO.im, which is great except they don't offer group chat... I'm looking for something similiar but with that feature.Required:Group chat (like a desktop app)Web based (no desktop apps!)Support gTalk/Aim/Msn/SkypeNice to have:Chrome pluginoff the record type featureEdit: Sorry I should have mentioned that I'm absolutely fed up with Gmails built in chat - if I receive one more Soandso hasn't received your message notification, I might jump off a cliff. (The worst part is that we tested it in office, and sometimes people DO get the messages, and it still shows the error). Also I need MSN/Skype.The group chat doesn't have to work accross protocols. Just needs to support group chat for the individual protocols. (In other words I don't need to invite Skype contacts to a Google Talk group chat). 
Web based chat that has group chat features?
webapp rec;chat