Opera has submitted a version of their web browser to Apple for approval and inclusion in the app store. In the past Apple has turned down apps that they feel compete with built in functionality that the iPhone already has. Obviously Opera Mini competes with Safari on the iPhone so there is a good chance that Apple with reject it.
To help counter this, Opera put up a counter showing how long it has been since the app has been submitted and are running a contest where people can win an iPhone by best predicting when it will be approved. What they are really trying to do here is generate enough public interest that there will be an outcry if Apple rejects their application. It will be interesting to see if this works or not.