His comment is a famous paraphrase meaning the technical challenge alone and the fame it brings may be enough motivation for some.
The initial jailbreaking is just the door opening that enables useful applications to emerge.
Yes, I thought the phrase was famous enough
Yes i got the meaning, but for some reason i detected a hint of sarcasm; hence asked for a clarification :-)
Enabling Kindle to read other formats besides .mobi(like epub) instead of messing around with conversion, makes it useful for me.