iOS 4.0.1 will be available later today and contains several bug fixes:
-Font sizes: Font size increased and color darkened for items in the diary and search results to improve legibility.
-Crash fix when quickly tapping delete.
-Fix for local account owners who report data loss when migrating to an online account.
-Crash fix for swipe to delete.
-Fix for wrench icon referencing the incorrect meal.
-Fixed missing trend line on progress and data for nutrition reports on iPhone 5s.
-Resolved truncated text on newsfeed settings.
-Resolved issue where friends' weight loss is locked even though they are sharing their profile with you.
-Users set to kilojoules will see the correct daily goal line on bar charts (currently they see the calorie line)
-Fixed the "gear" icon behavior so that it is associated with the user's current tab/diary section.
Thanks to everyone who contacted us with feedback and suggestions on the new iOS update!