Indeed, Emulators are not necessarily illegal. However, any software to circumvent copyrightprotection is illegal thanks to the DMCA and the works. Btw more info here: http://www.nintendo.com/corp/legal.jsp#emulator
They're maemo and MeeGo... "Meamo!" sounds like what Zorro would say to catherine zeta jones... after she slaps him for looking at her dirtily...