Google Talk and things
You say to install Chrome to make good use of Google Talk. I've mostly stopped using Chrome - again, because of the horrific bug where Chrome crashes when you upload and download files (especially over a home network). I still use gmail, love Android ICS and Google Navi, but so far I have not figured out any use for so many other things that Google pushes so hard.
It's not like I'm computer illiterate or fixed in my ways. I've been studying or working in IT for 40 years, and have used email since the 1980's. I beta test consumer software (including Windoze 8 Mutro). I maintain a home network with more then 20 connected devices. It's just that Google has given me no reason at all to even try to figure out what their other 'tools' do, and the 'tools' I use now meet my needs. And Google isn't always all that interested in some cases, IMHO, in debugging it's tools - like Chrome. In contrast, in a beta test I'm currently participating in, the vendor in question really encourages bug reporting and product discussions so they can figure out what the product needs. And when Motorola did one of their ICS pre-releases recently, they took people's concerns and comments seriously (but still owe us some fixes).