New Mogul / WM6 owner - closing apps with hard button?

[nsinsinsi]

I just got switched over from a Treo 700P to a Mogul. I like some things about the phone but I have a few issues PPCGeeks might be able to help me with.

1- Is there any way to completely quit an application without having to use the stylus? I have X-close installed, which works fine if you actually tap on the X with your stylus, but doesn't work at all one-handed.

What I'm wishing for would be an app that will quit the active application when run, so it can be launched with one of the Mogul's many buttons, perhaps by a hold-press of the side button.

Is there any such thing out there?

2- Is it not possible to import custom ring tones and use them as general notifications? For example, my own custom ringer for new emails. This is a built-in ability on PalmOS and I'm surprised this doesn't seem to be supported.

Thanks for any help.