It isn't exactly clear how it's managed from the desktop either. Over the years they've really screwed the whole thing up. It's no longer clear whether someone

It isn't exactly clear how it's managed from the desktop either. Over the years they've really screwed the whole thing up. It's no longer clear whether someone is online, offline, online but hidden, or just lost in a contact list change reorganization. it also isn't clear whether someone is available to chat, or if the IM I send will be inconveniently received on their mobile phone, something I try to avoid doing when possible.