If you want to make a Android app that will sell well, make a Fark.com app.
If this poll was started by SB, that would be entirely different story.
Forum apps are merely a stripped-down version of the site and they are not guarantee it will load fast than browser version.
Maintenance fees could be much higher, and this definitely going to weight down all the benefits... Unless there is a bigger BLF goal that we are not aware of. 