I resubmitted and now it has failed because 'Content does not render correctly in portrait mode' . ( also on early 5800 firmware ) . Well, of course it does not - it is only meant to be displayed in landscape and has the
property in its JAD file. But turns out early 5800 firmware does not honor that!
The problem in general is that the developers almost always develop on latest firmwares, but people tend to have the earliest and most buggy ones. I for one don't have access to early firmwares of every possible handset. Even Remote Device Access for some reason has almost entirely newer firmwares while it really should have more variety!