By default the number of products per page is set to 20 it would be good if this could be changed to have the option to set the view by default to all.
Aug 20, 2013
Thanks for comment
This feature was implement in case of quick access to store data in case of store switching.
See screenshot - http://screencast.com/t/BRHQLDPQXO
If you have 1 store with 100 products and another one with 100 000 . in this case it better to represent standard amount of data (20 row in this case) it quickly and you can see necessary data.
By the way -you can turn paginator off by this button - see screenshot - http://screencast.com/t/1teTTNEg6N7
Button - "Show\Hide Page Filter"