I can click the track wheel and go down to "Home Screen" and still be on the call and go through my BB apps. Although it is still 2 steps yes. Not a shortcut.
Yeah, I rarley do this...but when I do want to look something up while on the phone, I usualy forget what to do and it takes me a second or two. Espescially difficult if you are not on a headset and just have to convince the person on the other line that you are still there by talking into your BB but not being able to listen
Assuming you don't wanna use speakerphone.