We have launched a very innovative Cloud based Project Management software called BootStrapToday
Wall Feature: Yes we have a wall where you can share your ideas give suggestions and post comments & thoughts on improving the productivity of the project you are working on, along with your team
Multiple Project handling: Gives each of your project its own DashBoard, Calendar, Ticket Management System, Milestones, Wiki, Source and Access Control.
You can see the product video at: http://blog.bootstraptoday.com/2011/01/17/bootstrap-today/
Also, what do you think of the pricing? - http://bootstraptoday.com/plans-and-pricing/
'Your feedbacks and comments are valuable to us'