RIM failed because they couldn’t compete on software.

Once the App Store launched and the iPhone became everything to everyone, they struggled to ditch the archaic bbOS for QNX fast enough.

The Playbook was probably the only tablet anyone has ever launched that came close to the iPad in terms of build and software but it was too little, too late.

We might consider iOS to be a little tired if it wasn’t for the fact that we can label every criticism at Android as well and they operate a closed duopoly. No newcomer can compete because phones are just shells for apps; it wouldn’t matter how good their OS was. Just ask Palm.