Is there a chart or spreadsheet somewhere of what features are available in what platform for G+ ? If not, there should be.

Just a bit tired of features being in Android, but not desktop web. Or in iOS but not mobile web. Or available in mobile web but not in some browsers or user agents. Or only available in the latest release of iOS and not on older iPhones/iPads/iPods.

It's a bitch having to provide equal support for Browser, Mobile Browser, Android, iOS (multiple versions and layouts), Chromebooks, Microsoft Phones. and so on and so on. But I do expect the largest companies (Google, Facebook, perhaps Twitter) to do this.