From the wiki:

* Use this custom reader to read mobi/epub/fb2/txt/rtf/html/pdb.

* pbchess is a powerful chess training program available for Kindle Touch

* Audio Recorder and Player

and some other apps like VNC!!

Like climbing Everest - because it's there !

If i understand your comment, you're saying it's pointless?

Enabling Kindle to read other formats besides .mobi(like epub) instead of messing around with conversion, makes it useful for me.

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

http://en.wikipedia.org/wiki/George_Mallory

Yes i got the meaning, but for some reason i detected a hint of sarcasm; hence asked for a clarification :-)

NO I'm saying the technical challenge and the exercise of your rights to do what you want with your own property is justification enough - even IF it didn't add any functionality to the device

Even though there are some benefits in this case, hacking/jailbreaking/modifying doesn't need any other reasons except fun doing it.

Removing the ads.

If you didn't want the ads you should have bought an ad-free version.

Here I would side with Amazon.

It's not like skipping ads on Tivo or being forced to watch unstoppable trailers on a Disney DVD.

You have made an honest and fair deal with Amazon. You can buy a Kindle or they will pay you $20 in return for viewing some pretty unobtrusive ads. Hacking this version to skip the ads is basically unfair.

In reality few enough people will do it to impact Amazon, and the jailbreakers probably also own other kindles AND buy more books from Amazon than the average person - but Amazon is on the side of the angels here.

Are there sides? I'm just saying something you can do with it. I don't see this any different than magazine subscriptions like Home and Garden that have about half the pages as ads. I tear any double-sided ads out of the magazine.

How is skipping ads on Tivo any different? The implicit contract of broadcast television is that the ads pay for the content.

I haven't been offered a deal by the advertiser to watch ads for a discount or pay more for no ads (plus I'm paying a subscription for the cable) - not watching TV ads isn't stealing whatever Mr Turner says!

It would be like going to buy a car and saying and asking for a discount because you had seen their ads on billboards along the freeway!