They continue to improve but they have yet to fix one major speed issue that I addressed since version 1.0, until today:

New in Version 200:

• Quicksta Snap film queue system – as you shoot images are processed in the background, enabling you to rapid-fire up to nine images in a row without waiting for processing (requires iOS 4)
• Camera Bag organization system – rearrange and disable lenses, flashes, and films, as well as specifying ones for shake-to-randomize

$1.99 on the App Store, free for existing users.