TBH this would be pretty useless for me. To start with I have a nokia N900 smartphone which doesn't use either android or iOS. It has a decent browser already installed (a modified version of firefox), and if I REALLY wanted to browse the forum faster on it then I would write my own software to do so.
It seems like this software is a complete rip-off.
Taptalk has a Nokia app too. It's near the bottom of this page
Not sure why so many people are quick to dismiss this. I've actually installed and used it to browse forums after being very accustom to using the built in browser. Android's build in browser is awesome but taptalk still makes stuff easier. It manages passwords, formats the threads and boards more logically for a forum, manages PMs. All sorts of things. 3$ isn't much to ask for that... plus... the free version is free. So you could at least read if you can't be bothered to shell out 3$ to a dev that's build a clever app.
First, I checked and this won't work on an N900 - I suspect it only supports the older symbian OS. The current OS is Maemo 5 which is a derivative of Debian Linux.
Second, as has been stated there is already a mobile version of the forum which, as far as I can tell, supports all the features I normally use. I could either use that directly through a browser, or, if I was feeling particularly bored, I could write a customised browser in python to parse the mobile version of the forum and add a nice GUI. This would cost me nothing, and in fact I have already done a similar thing for another website (xkcd).
If Toady thinks it can be done fairly quickly (as in a couple of hours) then sure, it would be nice for people who want to read the forums on mobile devices. On the other hand if it's going to take a couple of days to implement then I really think that time would be better spent working on DF.