Any time OS X corrects your spelling or (more likely) inserts appropriate accent marks, Dictate loses its mind and can no longer correctly enter some random letter. There are two ways to fix this problem (apart from just restarting Dictate all the time).
spellcheck
My 10 Favorite Hidden iOS 4 Features
Apple released version 4 of their iPhone OS iDevice (iPhone, iPod Touch, iPad) OS last month after a grand WWDC unveiling. Although there are many changes and new features, not all are as obvious and noteworthy as multitasking, home screen folders, and background audio. After working with iOS 4 on an iPhone 3GS and iPhone 4 for a month, I thought I might highlight my favorite hidden features. Did you know these existed?