While this is a good idea for a thread, it also should be backed up with action towards the site offering the service.
For example : PDF and sketchbook (like app). The best thing to do would be to go to
Adobe's site and find a way to start a campaign to get their
mobile applications on the BB devices. Since they already have a development tool (
Adobe Flash Builder) for the PlayBook, iOS and Android, then it should be a no brainer for them to make their current Android and iOS applications work for the BB.
If the service opens up their information for development, which Plex might, then it is good for developers to know such a service exists. Personally, I've never heard of
Plex or
JeFit until this thread. Since JeFit doesn't open their API up to developers, then a campaign or just a
simple thread in their forum could push them to create the application.
From a developer's perspective, having a thread of wanted apps gives us ideas. However, if the service isn't open to outside development, there is not much we can do.