Google Account shows two Android Login Service in Connected Sites, Apps, and Services I have a HTC One X and when I go to my Google account's Security section -> Connected Sites, Apps and Services, it shows me two entries of "Android Login Service — Full Account Access". But I have only one Android device. Below is the screenshot:



Is this correct or there is another device which connected to my account?
"Android Login Service" will show up if you use the browser login.Revoking it will prevent the device from logging in, phone will ask for password. 

Just to see I went into my account>security>connected apps and revoked access to everything that started with android(In my account also there were two entries). Phone ask me to sign in again and everything's working so I'd say do the same. I don't think you're hacked but still, it certainly couldn't hurt.  

Link to discussion about accesses