Just to let you know i have just updated this to the latest version (4.6.0) as always, any problems do let me know here.

There is quite a jump in version number, so I've not listed all the changes/fix's this version brings, however I have made good "Push Notification" it looks as though this has always worked but I have now setup proper API access, not sure at this point what exactly the difference will be but I'm told "This key will be used to validate Push Notification request from your server. This is optional but recommended."

Enjoy!