Having a real physical keyboard is definitely an advantage of the G1, but what happens when you want to send an e-mail in a language that uses accents or other characters which are not present on an american qwerty keyboard? I accidentally found the solution: use a combination of the alt and shift key.
Diacritics
Press alt + shift + e, w, i, u or n respectively for an acute accent, grave accent, circumflex accent, unlaut oor tilde, followed by the letter on which you want the accent.
