Facebook IM is certainly a popular app feature, especially with push notifications, but I am not sure it is worth $150, not to mention $150.99. That extra $0.99 is particularly grating 🙂
Actually however is seems that the developer is not intending anyone to buy the app, but is merely pushing out a fixed version to its installed base, which is actually pretty good. There is a new version available of the same app from the same company for free at present, and even a XAP at XDA-Dev for side-loaders.
Of course the question of why the developer had to re-submit his application remains, but we laud him for continuing to take care of his older customers, unlike developers who have in the past threatened to leave those behind when problems with Marketplace and Microsoft force them to abandon their old app.
Thanks Austine for the tip.