It makes sense to worry about Android, but lets not forget that: a) Nokia can outsell every single Android device put together. b) Android is crippled by design. It's going to look even less appealing on more powerful devices. c) Even if Maemo has a slow start, Nokia has Debian's huge repositories backing it up.
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...