Hi BlueLoo,
I've never owned an iPad 1 before so I asked
I got a reply.
1. The strap is removable
2. Response on iPad 1 vs iPad2 :
a conversion kit that is included with all kneeboards.
This consists of some strips of self-adhesive foam that are added to the existing foam inside the tray section of the kneeboard. Using the conversion kit, the iPad 2 fits as perfectly snuggly.