Plug-ins for conversations and contacts

I've tried android devices and iphones but I've never seen a solution for electronic communication as great as the plugins for conversations and contacts.

I just power on the N900 and it automatically connects to skype, gtalk, sip, jabber..... and it stays connected and online.

With android or apple devices you have to open a separate app for all these things. The app might be suspended in the background, or the app might crash, or the device might reboot, or power management might shut down the data connection.... any of those things might disconnect me from the various online communication services I use.

Also, if I wanted to talk to someone, I had to check all the various apps to see which service they were online with. On the N900 I got all that information in one place in Contacts.

Has anyone ever seen something like this on another platform?