i'll put what i've learned here too...
Pandora is cracking down on 3rd party apps and our ability to bypass their ads. They will flag your account if they recognize a 3rd party app. They were aware i was using Apollo specifically. The flag causes tracks to be only 42 seconds long and no audio.
i've experienced the issue with one email that uses apollo and the other email which uses the pandora palm app. They BOTH started doing the 42 second thing, so they may be flagging their own app because it exhibits the same behavior of not playing ads. When I contacted them, they gave me the one finger salute, AKA "we don't support webos".
If your app kicks back enough errors with playing ads, it may start doing the 42 second thing also. I don't know how to avoid it yet. So pissed at them right now.
Ironic that my PC using Firefox and ABP will play without ads all night. It did the 42 second thing once, and two "it's our fault, please reload" dialog box instances. Switching stations overcame it. Too bad I can't carry my laptop around on a motorcycle.
fyi: pandora plays on TPad in the browser now, but with ads. But phones identifying as Palm are victims of the ancient redirect page.