Looks like Facebook doesn't want the app to pre-propagate the share dialog with text anymore :(
It doesn't have to do anything with the iOS version, but with the build in Facebook App (as the share processes is somehow interlinked with the FB app)
It's stupid and on Android you couldn't do it either (it was disabled longer ago) i hope Facebook reconsiders this as it will lead to fewer shares and some might be willing to drop the share option
Note: if the user doesn't have the FB app installed (he removed it), than the text is added to the status, but i guess that only a small amount of users, but maybe a good reason to still supply text to the share items
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