Certain wonderful apps like Stanza (e-reader), Byline (RSS Reader / Google Reader Sync), and Tweetie provide this option. I love them for it.
Some apps do not provide this functionality however (Facebook, NetNewsWire, and even Safari) and I hate them for it. I absolutely can't stand using an application which frustrates me in bed. Maybe I'm crazy.
or
Maybe developers should offer this simple switch in their options to turn this off. It may just be that I'm the only person yelling about this but I know other users get frustrated by this as well, it's simply overlooked at times.
So, join me in asking developers to kindly provide this option for us. I'm looking at Apple as well, Safari is a huge pain in the ass while laying in bed.