I call WebView.clearHistory(), but I am still able to go back after 
doing so. I want to reuse a WebView, but I don't want the back button 
to allow the user to go back further than the current "session" of 
using the WebView. Anybody know what is the best way to handle this? I 
thought for sure that clearHistory() would do it.
I recently had the same issue. What I found is that you have to clear 
history AFTER the (first) page loads. It appears that the history 
clears everything before the current page so if your browser is at 
page "A", you clear history and navigate to page "B" your history will 
be "A" "B", not just "B", but if you clear history when "B" finishes 
loading you will have only "B". 
In my case I end up using "onPageFinished" method of the 
WebViwClient, but in this case you have to know what your start page 
is and clear the history only after it otherwise you will be clearing 
the history after every page navigated after the first. 
Stefan