h4x0rj3ff
Chemist
I found this over at the nexus 10 forums and thought i would share
I got this from here http://mostly-tech.com/2012/11/17/nexus-10-tips-and-tricks/
This does in fact work on the n7 as I'm using it now
Expand your keyboard – Since the Nexus 10 has such a large screen you may want to expand to a full-sized PC-style keyboard that includes number keys and extras like the screenshot above has. It’s tricky to setup, but worth it if you like to type in landscape mode. Go to Settings/Language & input and then touch the settings Sliders next to ‘Android keyboard.’ Next, touch ‘Advanced settings’ and touch ‘Custom input styles.’ It will say Deutsch and Francais, but you can ignore that. Touch ‘Add Style’ near the upper right. Then select your language and change the layout from QWERTY to ‘PC’ or one of the other styles. Now touch ‘Add’ and you’ll see your new style appear in the list. Touch ‘Enable’ and use the back key to go back to the Language & input screen. Now touch ‘Input languages’ near the top and uncheck ‘Use system language.’ Lastly, touch ‘English (US) (PC)’ and you’re done. [Thanks to the guys at AndroidPIT for providing this tip.]
I got this from here http://mostly-tech.com/2012/11/17/nexus-10-tips-and-tricks/
This does in fact work on the n7 as I'm using it now

and when your not typing in user names and passwords like that you can just tap on the globe icon next to the space bar to switch back to a normal keyboard