FeelProductive.com is a productivity, collaboration and time management application that could be leveraged for our internal team's communication and integrated into RenMind Network.  This project was mostly self funded and we had a 50 or so active users.  This was our basic pitch:

DO YOU WANT TO BE MORE PRODUCTIVE?

Feel Productive is a Fun, Easy Way To Keep Track Of Your Tasks and Schedules

 

Keep Track of All Your Tasks 

Whether it's for work or household tasks, you can keep track off all the things you have to get done. Mark them off one by one as you get your work completed.

 

Prioritize And Complete Your Work

You get to pick what's most important on your list. Schedule it for today or later. You get to mark down your time spent on a task and check it off your list.

 

Compete With Your Friends

Co-workers, friends and family members can all compete with you to see who has been the most productive over the month, week and day.

 

Wooo, check it off... it's done!  There is no better feeling than getting all those tasks off your plate, so you can relax and have a little fun on your own. 

What could it be in the future?  Feel productive could be your own virtual assistant, check your important mail, see support cue, projects and todo's all laid out before you.  Heavily integrated into core contacts, send tasks and track their completion through email.