T-mobile Dash and that proprietary audio jack - WTF?

What on earth where they thinking??

The phone looks awesome with every dream feature I've ever wanted...

But If I can't connect the audio out to my fm transmitter or other
STANDARD audio devices then I'm not even going to consider it.

Did they really have to do that?

They should at least offer a free adapter - Somebody over there is
really missing the point of combining gadgets.