An excerpt from an opinion piece on Droid Life.
I think the problem that a laptop or desktop implementation needs to address is twofold: notifications and applications. When I’m working on my computer I usually have my Gmail and TweetDeck running in Chrome to notify me about new emails and replies on Twitter. The problem is, I usually have my phone right next to me as well for phone calls and text messages. For phone things that’s fine, but I end up having a notification on my phone and on my desktop for new tweets or emails. The Gmail notification will disappear on my phone once I check my email on my desktop, which is fantastic, but the Twitter notification will stay there until I dismiss it regardless of what application or website I use to read my tweets. This notification problem is only multiplied when you add a tablet to the mix. Instead of finding my multiple devices giving me increased productivity, I find that I’m dismissing notifications left and right instead of getting things done.
I have a Xoom tablet, Droid1 and Droid2. Some notifications I receive show up on all devices including whatever computer I am logged into. Notifications are unified on each device individually but now we need them unified across all devices and browsers.