Zune phone a threat to Windows Mobile?

OK now this is a bit of a stretch, but Taiwanese handset manufacturers are concerned that Microsoft's follow-up to the Zune digital music player, the recently-confirmed Zune mobile phone, will erode the market for Windows Mobile-based devices. My understanding is that users of the Zune device may be able to connect to and share music with mobile phones running Windows Mobile software--essentially making any Windows Mobile phone a potential Zune phone.

But even if Microsoft delivers on their promise for a dedicated Zune handset, I'm not sure how that entertainment-centric device would affect the broader Windows Mobile market, which is based, primarily, on business-oriented smartphones.

For more details on the Zune phone talk:
- read the DigiTimes article

And for the Zune phone announcement:
- read this article at Ars Technica