Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
MadMonkey: You're right about that BB example. The button should be named "restart turn" and not "choose another piece". And you're right, an additional "undo last move" might be helpful for some.
I just have a different opinion on the value of "Back" and "Forward": Everybody who uses a browser knows them, uses them and has the same mental model of them and what to expect from them. A lot of sites that use forms for navigation or that use AJAX or whatever hip thing break this model and make them useless, leaving the user alone with nothing than the - often badly designed - navigation tools the site offers them.
I am so glad that BrainKing is fully Back button compatible! The Back button is always at the same spot, it is available and in place even if the page didn't fully load, I can easily click it 3times in a row to go 3 steps back without waiting for the "undo" button to be rendered, it offers a menu to go back for example 5 steps in one, and for me it is just a 4mm movement of my right thumb. I would never use anything else just to go one page back - what an overhead!
So the question is, Do we need all these different options on brainking about navigating the site to boards, next games, tournaments, ponds etc..etc... the answer is no in your case as there is always a way to get there anyway.
The question is a definite yes for me. I don't see any convenient way to perform the mentioned navigations other than by the options offered by BrainKing. It would be very cumbersome. It just doesn't have anything to do with the Back button :)
That doesn't mean of course, that everybody has to use it, and that the other buttons are useless. They seem to be useful for some, if not many, so the changes you propose are reasonable! If we have the "restart" button we should have the "undo" button also. And they of course should be named properly.