Edwards new xAP X10 connector implements the original xAP X10 schema but more importantly now supports BSC as well. So from XLobby instead of targeting a device in Homeseer you target the device in the X10 connector and it will just work, including status/event feedback. I'm thinking it probably works already.
Bear in mind you are still restricted by X10's limitations, for example most European devices do not support absolute dim levels (only relative) , can miss commands and provide no two way feedback. so you can't ask a hardware device its state or know if it has been turned off locally at the switch. The xAP conduit tracks as best it can the X10 traffic it sees on the power line to be able to mirror the state , just the same way that HomeSeer does, and presents this back as BSC status. A different technology (eg Z-Wave or C-Bus) would provide true status and hardware synchronisation , again delivered just the same via xAP. What you may notice here is one of the key benefits of xAP ... you could swap your X10 hardware for say C-Bus (ensuring your hall light is still called hall light) and it would just carry on working the same ! That is also why in the new X10 BSC imlementation devices are called 'hall light' and not 'C13'
Kevin
Edwards X10 conduit is here
http://www.edjo.pwp.blueyonder.co.uk/edward/xAP/index.htm