Long story short
If Apple don't approve the update version of "Lock Screen (Slidetounlock)" v2.0 before 26 June 2011, we will release "Lock Screen 2" as a new application. Our customers who bought v1.0 can still get a free update by download "Lock Screen 2" application between 27 June - 1 July 2011.
In the first days after we first launched "Lock Screen (Slidetounlock)" v1.0 on 2 May 2011, we got comments that some of user faced a black screen when they locked (which actually can be fixed by updating the latest operating system patch). We fixed this problem and sent v1.1 to Apple Team for a review on 4 May 2011.
While we are waiting for Apple team to approve v1.1, we were developing v2.0 which include many requested features. On 3 June 2011, Apple team still don't approve v1.1 and we finished v2.0, so we decided to remove v1.1 that currently in review for more than a month and submit v2.0 instead.
And it happened again, 3 Weeks past and v2.0 still in review by Apple team, so we decided to try an another way. We sent the new Application name "Lock Screen 2" (which exactly the same as our "Lock Screen (Slidetounlock)" v2.0) to Apple team, and this application was approved in 2 days !
So we're now confused how the approval process of the Mac App Store work. Apple made us unable to update our application for almost 2 months. We also mailed to Apple about this very long process and if Apple still don't respond or don't approve "Lock Screen (Slidetounlock)" v2.0 , we decide to release "Lock Screen 2" as a new application. However, we want to give a free update to our customers who bought v1.0, so "Lock Screen 2" will be free to download between 27 June - 1 July 2011
Lock Screen 2 Preview Video : http://bit.ly/lockscreen2
"Lock Screen (Slidetounlock)" status
"Lock Screen 2" status