There are some great ideas flying around here, but has anyone turned their attention to the responsiveness of the Phone app when running other applications?

In my experience, if I have a lot going on in the device (YouTube, other browser pages, e-mail) if a phone call comes through I might as well disconnect the battery immediately, as the device is bound to just jam.

Sometimes the phone app isn't quite as bad, but might be sluggish, even though there's nothing goin on at the same time! The screen might simply turn black so I know something's coming, but it might remain black for a long time. It's really the same with SMS and E-Mail as well, with E-mail working perhaps the best.

The problem with my experiences is this, however: I can't recognize any patterns for the problems occurring for me to file a bug report or suggest a solution. The problems seem really random and very often just unexplainable.

Some bug reports come close to defining some of this ambiguity, for example the volume problem during calls or the screen being locked even though the light is on. But a large part of this behaviour, at least to me, seems unexplained.

How about we all reflect also on this kind of experiences of sluggishness or un-responsiveness as we think of new features for the Contacts app etc. ? Anyone got similar problems?