Back in 2010, when iPod Touch 4G was introduced, it gained so much popularity because of introduction of the front and rare camera, Powerful A4 Chip and its sleek design. Well, if we talk about the camera of iPod Touch, there was nothing special in it. Although it was HD and have resolution of 960×720 but it was just 0.6 mega pixel. However, the front facing camera was quite impressive as it was the same as iPhone 4 has for video calling.
iPod 720p HD Camera is a camera app base on Apple's AVCam sample. It enables iPod touch with camera to take photo with 1280x960 resolution. Other features include:
-takes picture while recording video
-switch camera (front camera resolution: 640x480)
Notice: this app only tested on iPod touch with camera.
However, Even by using this tweak, the Photo quality is far behind than iPhone camera but it's still better than the Original iPod camera. Well, you can download this tweak from Cydia and its absolutely free of cost.