I don't think that .mobi necessarily has to be "stuck" with the lable of being for mobile phones only. Who knows what other devices will be made available in the coming years that are mobile. Though I guess for now, most will see them as intended solely for mobile phone use.
If you are looking for an extension to lable as for "mobile phones" then take a look at ... http://www.nic.mp (mp=Mobile Phone)
As for keystrokes, yes, it will take a lot longer to search for a name using a phone keypad then it would using a conventional keyboard. However, if you are doing a search on Google mobile for example, wouldn't you need to use the same number of keystrokes to search for your "search term" ?
If you are looking for an extension to lable as for "mobile phones" then take a look at ... http://www.nic.mp (mp=Mobile Phone)
As for keystrokes, yes, it will take a lot longer to search for a name using a phone keypad then it would using a conventional keyboard. However, if you are doing a search on Google mobile for example, wouldn't you need to use the same number of keystrokes to search for your "search term" ?