FieldTest is hidden by the SBAppTags key in info.plist of FieldTest.app and can't be turned on/off by Poof or modifying DisplayOrder.plist because there's no DisplayOrder.plist in 2.
I did 2 things:
- copy the old icon.png I got from the old FTI patch (for 1.1.4) into FieldTest.app
- extract info.plist from FieldTest.app, use plistedit to delete the SBAppTags key and insert info.plist back into FieldTest.app
and FieldTest icon is now on my SpringBoard and can be started with a tap, I can use Poof to hide/show it.