How I Use It
I use LinoIt for my annual World Water Day global project (e.g. http://bit.ly/worldwaterday2013).
It is a great collaborative brainstorming / sharing tool, with options to upload photos, videos, and text. I personally like the variety of the colour scheme.
LinoIt is a great tool for brainstorming, and crowd-sourcing ideas for global projects. I use this tool on my desktop and laptop computer, but find it hard to recommend using it on mobile devices.
My biggest complaint is that the iOS app is heavily ad-supported, and an expensive subscription is required to remove them.
This is a great tool for teachers, and is suitable for Grades 2-12 students; however I would recommend using a teacher account, and sharing public LinoIt boards with their class- rather than letting students create their own accounts. This helps avoid the need to 'invite' collaborators (and the 13+ restriction)
If you are looking for a (free), excellent iOS alternative to LinoIt, I highly recommend Padlet (formerly WallWisher).