Best iPad Apps to Collaborate With Team Members

Freemium

Trello is a web based project management solution.

Commercial

Redbooth (Teambox) is a web-based and on-premises workplace collaboration tool and communication platform.

Find apps to do interesting things:

Play videos including AVI, MP4, etc

Backup complete system

Share files remotely with other people

Take a screenshot and share it with others in in few clicks.

Create virtual machine sharing the resource of host system.

Create product diagrams