I’m still surprised at how many photo apps still are not fully iOS4 compatible. I’m even more surprised at the number of camera apps that still don’t fully work with the iPhone 4. There have been a lot of slow days on the App Store updates page. That said, yesterday was not one of them and there were some really cool updates released, including updates to Color Splash, Camera Plus Pro (the Camera Plus with video), GorillaCam, and Tiffen’s Photo fx.

We’re still tracking and updating iPhone 4 compatibility in our iPhone 4 Photo App Compatibility Feature.

Read on for more details about yesterday’s updates.

Color Splash 1.5 — The new update features bug fixes and performance improvements. Now, the app supports iOS 4 fast app switching,

Camera Plus Pro 2.5 — fixes various bugs. Although I haven’t tested it thoroughly, the app is now listed as fully iPhone 4 and iOS4 compatible.

Gorillacam 1.2.1 — The free camera replacement app I recommend most often. The new update has bug fixes and now Gorillacam supports iPhone 4 full-res output at 5MP. There is no more “shutter bug” where the camera fails to resume after flash. Unfortunately, this was achieved by simply removing support for the iPhone 4’s flash altogether.

The heavyweight of yesterday’s updates is Tiffen Photo fx 4.0 which got a ton of great new features. I had rediscovered Photo fx recently and was absolutely loving the previous version. The new update is a fantastic one, with new features, interface tweaks, bug fixes and overall improvements. An added bonus is that Photo fx still works in OS 3 on an iPhone 2G. I can review this update in one word — wow! Here’s the complete list of the new and updated features in the Photo fx 4.0 update.

What’s New In Version 4.0

  • Paint filter added to the Image group. Paint includes the following brushes: Color, Clone, Blur, Black and White, Mosaic, Red Eye, Repair, Scatter and Eraser
  • Levels filter added to the Image group
  • Sharpen filter added to the Image group
  • Auto Adjust filter added to the Image group
  • Eye Light filter added to the Light group
  • Color Compensating, Color Conversion, Light Balancing, and Photographic filters were added to a new Photographic group
  • Quickly find filters and presets using the new Search mechanism
  • Paint Mask Enhancements. Opacity added to the Brush > Size and Softness controls. The paint cursor is now displayed when resizing or painting
  • Changed the Reset icon to double arrows
  • Crop and Rotation Enhancements
  • Crop using standard print sizes including: 4×6, 5×7, 8×8, 8×10, 8×12, 11×14, 12×12, 12×18, 16×19, 16×20, 16×24 and 20×30
  • Rotate by 1/10 of a degree or specify a user defined rotation angle
  • Filter groups have been renamed to match Photo fx Ultra for the iPad
  • Filter placement and group naming has been re-organized and changed to match Photo fx Ultra for the iPad
  • Compatibility with the still image editions of the Tiffen Dfx Digital Filter Suite through emailing of setups
  • Slider background was removed
  • Before/After icon was changed from double-arrows to a lightning bolt icon
  • Save icon was changed from a disk to an arrow icon which is the iPhone/iPad standard
  • Fixed a bug where the Tint > Amount sliders would freeze when set to O