In my company (http://nous.lt) we are using tons of web-apps. They are awesome, but they do not play well together. There is no way to see the whole project status (new files, tasks, events, discussions etc.) or, for example, easily discuss a Dropbox file and then create a Pivotal Tracker task out of it.

We wanted to create something that saves time by letting us interact with all apps from one place and allows moving data between those apps. So we started building a workspace that integrates web-based productivity apps.

If you think this is interesting - give it a shot and tell me what you think!

We are still in a closed beta, but HN ppl can sing-up without invites here: http://bit.ly/soqfyh