Unfortunately, the current Blackberry version of Mobireader available is not tweaked appropriately for the full screen touch enabled Storm experience and is an eyesore. So much so that it can be labeled unusable.
Fortunately, the MobiPocket team has indicated that they are working on a Storm version of their software. Till the time that version is release however, you can get by disabling compatibility mode, using the following steps -
- On your blackberry, go to Options -> Advanced Options -> Applications.
- Hightlight Mobipocket Reader and click the menu button
- Select "Disable Compatibility Mode"
- Perform a hard reset by turning off the Blackberry and taking out the battery.
- Restart the blackberry.
That simple trick will make Mobipocket Reader pretty usable on the Blackberry Storm.