Here application and game from here.... Enjoy it!

About Camera Mod for Sony Xperia Play
Requires Android: 1.6 and up
Category: Photography
Installs: 1,000 - 5,000
Price: Free
By: Sebastian Goscik

Description of Camera Mod For Xperia Play App

This app is a modification of Google's stock camera app. I have fixed some small menu positioning issues, increased font size, and have enabled the R button on the Xperia Play as the shutter button for taking photos and recording videos and the L button to act as focus in photo mode.

Edit: This issue seems to have resolved its self but another small issue has come to light, the on screen menus now have a much larger font. For my chunky fingers this is good but ill try release a version with the pervious size.

Edit 2: and the issue is back again don't know why its doing this

The app is now on the market! either search for "xperia play camera" or you use this link android market
Installation Insturctions
1. Backup the original camera application with a root application manager e.g. titanium backup
2. Then delete the original camera app
3. Reboot your phone
4. Install the .apk from below

If you have a previous version installed you do not need to delete the old one or reboot just install as you would any other app

Version history
v5 - fixed remaining issues this is the final version as of time of writing please report any issues.
v4 - fixed video mode and added non root version
v3 - pictures now taken on release of R1 and menu position fixed
v2 - Decreased menu size by about 40% and fixed minor graphical glitches with menus
v1 - Original release, has VERY large menus

File Type: apk Camera_xperia_play_mod.apk (653.0 KB)
File Type: apk Camera_xperia_play_mod_v2.apk (651.0 KB)
File Type: apk Camera_xperia_play_mod_v3.apk (651.9 KB)
File Type: apk Camera_xperia_play_mod_v4.apk (651.9 KB)
File Type: apk Camera_xperia_play_mod_v4_nonroot.apk (651.9 KB)
File Type: apk Camera_xperia_play_mod_v5.apk (652.6 KB)
File Type: apk Camera_xperia_play_mod_v5_nonroot.apk (652.5 KB)

Source : Forum XDA Developers