Airset, a newish collaborative calendar and contacts application that recently integrated nicely with the Skype API, announced integration with Verizon yesterday. You can now easily access most Airset calendar and contact information from a Verizon cell phone.
I’ve seen a few services that are addressing the calendaring and other administrative needs of small businesses. In my view, Office Live will be the standard once it launches. Until then, there is a window for services like Airset (and others I’ve seen but can’t write about yet) to gain customer traction.