Deploying web applications used to be painful. Set up a server, configure Apache, install dependencies, manage databases, worry about scaling. It was complex and time-consuming.
Heroku changes this. It's a cloud platform that runs your Ruby applications with minimal configuration. Deploy with git push. Scale with a slider. Focus on code, not infrastructure.
Mozilla has just rebranded their Weave add-on as Firefox Sync, and I've been using it for the past few weeks. This is exactly what I've been waiting for: the ability to continue my Firefox session from one place to another without losing context.
How many times have you left your computer at work running or hibernated because you had dozens of important tabs open and couldn't bear to lose them? Or needed to access a password you'd saved at home while you were traveling? Or wished you could see your work browsing history when you got home?