Game + Sensor + Interaction

 iOS5로 업그레이드 하고, 예전 소스를 실행해보니 

Unsupported compiler 'GCC 4.2' selected for architecture 'armv7'

라는 에러가 발생했다. 해결방법은 다음과 같다.

해당 Project - Build Setting 에서 Build Options의 Compiler for C/C++/Objective-C 부분의 Compiler를

GCC 4.2 이외의 컴파일러로 선택해주면 된다.

Apple iPad 2 GPU Performance - PowerVR SGX543MP2 Benchmarked
http://www.anandtech.com/show/4216/apple-ipad-2-gpu-performance-explored-powervr-sgx543mp2-benchmarked 

Apple iPad vs. iPad 2
	Apple iPad (PowerVR SGX 535)	Apple iPad 2 (PowerVR SGX 543MP2)
Array test - uniform array access	3412.4 kVertex/s	3864.0 kVertex/s
Branching test - balanced	2002.2 kShaders/s	11412.4 kShaders/s
Branching test - fragment weighted	5784.3 kFragments/s	22402.6kFragments/s
Branching test - vertex weighted	3905.9 kVertex/s	3870.6 kVertex/s
Common test - balanced	1025.3 kShaders/s	4092.5 kShaders/s
Common test - fragment weighted	1603.7 kFragments/s	3708.2 kFragments/s
Common test - vertex weighted	1516.6 kVertex/s	3714.0 kVertex/s
Geometric test - balanced	1276.2 kShaders/s	6238.4 kShaders/s
Geometric test - fragment weighted	2000.6 kFragments/s	6382.0 kFragments/s
Geometric test - vertex weighted	1921.5 kVertex/s	3780.9 kVertex/s
Exponential test - balanced	2013.2 kShaders/s	11758.0 kShaders/s
Exponential test - fragment weighted	3632.3 kFragments/s	11151.8 kFragments/s
Exponential test - vertex weighted	3118.1 kVertex/s	3634.1 kVertex/s
Fill test - texture fetch	179116.2 kTexels/s	890077.6 kTexels/s
For loop test - balanced	1295.1 kShaders/s	3719.1 kShaders/s
For loop test - fragment weighted	1777.3 kFragments/s	6182.8 kFragments/s
For loop test - vertex weighted	1418.3 kVertex/s	3813.5 kVertex/s
Triangle test - textured	8691.5 kTriangles/s	29019.9 kTriangles/s
Triangle test - textured, fragment lit	4084.9 kTriangles/s	19695.8 kTriangles/s
Triangle test - textured, vertex lit	6912.4 kTriangles/s	20907.1 kTriangles/s
Triangle test - white	9621.7 kTriangles/s	29771.1 kTriangles/s
Trigonometric test - balanced	1292.6 kShaders/s	3249.9 kShaders/s
Trigonometric test - fragment weighted	1103.9 kFragments/s	3502.5 kFragments/s
Trigonometric test - vertex weighted	1018.8 kVertex/s	3091.7 kVertex/s
Swapbuffer Speed	600	599

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Apple iPad2 Acceleration Sensor, Gyroscope
http://techon.nikkeibp.co.jp/english/NEWS_EN/20110418/191177/