MapQuest;
Spelled backwards is,
TseuQpaM.
MapQuest spelled incorrectly is
MapQwest.
Yet when you spell it wrong it is still pronounced correctly, even more so.

We are surprized that MapQuest didnt mispell their name purposefully like Google misspelled the word goggle, so that they were unique and not using an English language word.
When it comes to names Twitter is the most unique, but they used the term "tweets" which is not something unique to them. They should have mispelled it "tweats", then they would have the rights to the term, but does it really matter when people are tweeting 200 Million tweets a day!
If you sleep 6 hours a day you can tweet 55.555555555 times in one hour. You are limited to a total of 1000 tweets a day.

Unless you're a teenage girl what could you possibly say 1000 times a day, and if you are doing so then please stop.