Here's the list of fixes and changes that we made when developing SlideDeck 2.1. Some of these are specific to 2.1, but others are bug fixes brought forward from version 2.0.20120518
Added 500px.com as a content source
Fixed link coloring for light variation display of author links in Tool-kit lens to be more visible
Fixed duplicate SlideDeck bug that was preventing all sources from being copied
Improved interaction for duplicating SlideDecks to show an indicator while duplication is taking place
Fixed positioning of overlay with Tool-Kit lens and "Custom SlideDecks"
Adapted Instagram access token retrieval to work with new multi-source SlideDecks
Fixed bug in slidedeck_after_save event that was improperly passing only on source as a string instead of an array of slugs
Fixed bug with tooltips in flyouts for dynamic content sources that was causing tooltips to fail after a source was added or deleted
Added "Overlays Always Open" option to allow overlays to be un-closable when visible
Added ability to toggle iframe=1 as a default option on all future SlideDeck shortcode embeds
Fixed some miscelaneous bugs with the Posts source JavaScript to properly handle taxonomy filtering
Fixed display bug with O-Town lens and video custom slide types when using the caption layout
Updated SlideDeck jQuery core to 1.3.8 with a fix to properly handle animation speed
Set custom SlideDecks to hide start setting since it doesn't really apply in this case as the user can order the slides any way they wish
Added super-script, sub-script, clean formatting and paste special buttons to WYSIWYG editors for custom slides
Made no thumbnail thumbnails for Tool-kit lens inherit the slide title's font
Added slide type identification to identify the type of media on that slide (textonly|image|video|html) for mixed media SlideDecks
Abstracted video meta query methods to the parent SlideDeck class to be available to all content sources
Modified Google+ content source to show videos on those slides that contain video embeds
Added author information to YouTube video source
Added author meta data to Tool-kit video template
Made Tool-kit video template excerpt area class consistent with regular template for proper visibility control and consistent style
Created new multi-source Dynamic SlideDeck type to create SlideDecks with multiple external content sources
Restructured entire content source model to allow content sources to be more modularly attached
Created new "Custom Deck" SlideDeck type. You can now create a SlideDeck slide by slide, customize individual slide layouts and use custom content sources like: Images, Video, Text Only and full HTML
Tool-Kit lens: Addressed some issues with style inheritance on the navigation arrows for the lens that were causing some display issues
Setting related videos in YouTube to not display
Fixed issue with WordPress post content source that was causing titles to trim off an already texturized version of the title instead of trimming before texturizing
Fixed SlideDeck duplication bug where some options were not being duplicated
Improved full slide linking. If the slide does not have a permalink, the full slide link will not output for that slide.