As Jeremiah said, the developer is the only person who can make the decision to upload an app to the AndroidPIT App Center. AndroidPIT App Center is a mix of the Android Market and our own market. In the AndroidPIT App Center, we have entries for all apps which are listed in the Android Market, as well as apps that have been uploaded to us.
When an app is available on both markets (occurs sometimes), it is shown as being available for both.
When an app is only available on the AndroidPIT (occurs rarely), it is shown as only being available for AndroidPIT.
When an app is available only on the Android Market, it is shown as being "not yet available in the App Center", but if you click on the blue button at the top right corner, it takes you to the listing in the normal Android Market.