Has anyone heard if the Z-Wave stuff sold by the Viper Car Alarm guys is compatible with Vera?
Here is the Page with the products on it.
https://www.viper.com/Home/Accessories.aspx
Window/Door Sensors $25
Motion Sensor $50
The sensors you cite are not Z-Wave devices. Their specification pages state that they utilize 2.4GHz frequencies(NOT Z-Wave), so they might be Zigbee, but it doesn't say that.
The Viper site does offer a few Z-Wave devices, starting with their USB Z-Wave adapter, necessary to Z-Wave enable their home automation system. Other listed Z-Wave devices(the standard GE/Jasco stuff) is all listed as coming soon and are not yet available from Viper.