Well you could also say Gateway had the idea for an Amiga web pad back in 99
http://www.amigahistory.co.uk/webpad1.html

looks close to me
By '99, the "pad" concept was well known and a "hot" topic, so it's not so strange, though none of them took off. Personally I was working for a startup that had a prototype webpad in 1998, and we were not the first. Nokia, for instance had one around the same time.