First and foremost I'm not a developer myself, but since Radhoo encouraged me to post some feedback and thoughts on the speakerphone app, so here I am
Basically, the problem faced is that the Green button on my XDAIIs (Blue Angel) is not that sensitive. Sometimes while driving, it takes lots of effort to activate the speakerphone. At times it somehow refuses to activate. I'm not sure if it's hardware error or software error. If it's software error, then I think further debugging would be needed as the Speakerphone app would need to overcome those bugs first, right?
The idea here is to obtain a small app that will execute the string of commands to activate the speakerphone via a simple shortcut and to turn the speakerphone off automatically once the call is done. In my opinion, if the speakerphone button can be incorporated into one of the WM5.0 softkeys during the conversation, that will be great. Nevertheless, I don't mind launching it from the start menu.
Now if only I knew programming... I would have done something with those samples Radhoo posted. Regret I never took the initative to learn. Haha.
Anyway, I hope this is what Radhoo is looking for: Feedback from ppl like me.

