Sent from my iPhone

How it happens:

1. Have 12 pages of apps, 2 spaces available on a page and 1 space on the bottom bar.

2. Install an new app.

3. On completion of the install, the iPhone also fills the other spaces, putting the iPod icon on the bottom bar and the first 'invisible' app installed starting from 1 then through A-Z thus 1Password gets the honour.

Result: The iPod icon jiggles with all other icons static and the 1Password icon has an active 'Delete' cross.

Sent from my iPhone