I am very happy with the new lightroom update for iphone that has selective pen. It is great!
Here are the bugs of the latest (2.8.1) release:
1. When editing a picture and saving to the local filmroll on the phone, all edits are lost afterwards if one does not remember to press "force sync" before saving.
2. When using selective pen, the red area is gone if you want to edit the area afterwards.
3. When using selective pen, the whole area can be moved. However after moving it, alle further editing, like drawing more on the area happens on another place than where your finger is...
best regards,
Atle