There are some scary things happening to Palm (PALM) shares today.

While there appears to be no single specific trigger for today’s downdraft that I can find, there are a couple of factors that could be contributing to the pressure on the stock.

• In the latest move in the company’s chess match with Apple (AAPL), Steve Jobs’ company has once again blocked the Pre from syncing with iTunes, according to MacWorld.


• Sprint (S), the exclusive U.S. carrier (at least for now) for both the Pre and the new Pixi, spent very little time talking about the Pre on its post-earnings conference call this week; while the phone received a brief mention on the call, the company spent more time chatting about devices from HTC, Motorola and Samsung, and in fact boasted about the wide variety of smartphones it offers. Also note that the arrival Pre did not magically stop the company from continuing to shed subscribers.


• Motley Fool focused on Palm in a story about the “world’s scariest stocks.”


• In contrast to the latest results from Sprint, there has been an upbeat reception from the S