It's hard to have much sympathy when your app already has an identical name (and a very similar logo) to a mobile web browser launched four years earlier: http://en.wikipedia.org/wiki/Bolt_(web_browser)
I disagree. A web browser is used for person to person communication too. All three are used for very, very different forms of it, though.
The presence of a word in a dictionary/its length has no bearing on its registrability as a trade mark.
That's my point. There's a maximum lifespan; the life of the company. Since Bolt browser no longer exists, I doubt they would renew the trademark.