3GP			176x144				11:9
HGVA		480x320
MDA			720x350	1-bit		 4:3		2.057~	Monochrome Display Adapter. Text Mode Only.
CGA			640×200 4-bit		16:5		3.2000	Color Graphics Array. 16 colors.
EGA			640x350 4-bit		64:35		1.829~	Enhanced Graphics Adapter. 16 colors displayed from a palette of 64.
HGC			720×348 1-bit		 4:3		1.333~	Hercules Graphics Card
VGA			640x480	8-bit		 4:3		1.333~	Video Graphics Array
SVGA		800x600 4-bit		 4:3		1.333~	Super Video Graphics Array. VESA Standard.
UVGA		1024x768 8-bit		 4:3		1.333~	Ultra Video Graphics Array. VESA Standard. Another name for SVGA.
WVGA		800x480 24-bit		 5:3		1.666~	Android HD Standard
WVGA		854x480 24-bit	   427:240		1.779~	Motorola Droid HD Standard
XGA			800x600 16-bit		 4:3		1.333~	Extended Graphics Array
XGA			1024x768 8-bit		 4:3		1.333~	Extended Graphics Array
XGA-2		640x480 24-bit		 4:3		1.333~	Extended Graphics Array 2
XGA-2		1024x768 16-bit		 4:3		1.333~	Extended Graphics Array 2
nHD			640x360				16:9		1.777~	One ninth full HD (1080p) or one quarter HD (720p)
qHD			960x540 24-bit		16:9		1.777~	One quarter full HD (1080p) or three quarters HD (720p)
HDTV 720p	1280x720 24-bit		16:9		1.777~	High Definition TV
WXGA		1280x720			16:9		1.6000	Wide Extended Graphics Array
WXGA		1280x768			 5:3		1.666~	" used for computer displays
WXGA		1280x800			16:10 (8:5)	1.6000	" used for computer displays
WXGA		1360x768			85:48		1.77~	" used for TV and other consumer entertainment. Almost 16:9.
WXGA		1366x768		   683:384		1.778~	" used for TV and other consumer entertainment. Almost 16:9.
SXGA		1280x1024			 5:4		1.2500	Super Extended Graphics Array
SXGA+		1400x1050			 4:3		1.333~	Super Extended Graphics Array Plus
WXGA+		1440x900			16:10 (8:5)	1.6000	Wide Extended Graphics Array Plus
WSXGA		1440x900			16:10 (8:5)	1.6000	Wide Super Extended Graphics Array
UXGA		1900x1200			19:12		1.583~	Ultra Extended Graphics Array
WUXGA		1920x1200			16:10 (8:5)	1.6000	HDTV 1080p compatible at 1:1
HDTV 1080p	1920x1080 24-bit	16:9		1.777~	Full High Definition TV
2K			2048x1080		   256:135		1.896~
QWXGA		2048×1152			16:9		1.777~	Quad Wide Extended Graphics Array
QXGA		2048×1536			 4:3		1.333~	Quad Extended Graphics Array
WQHD		2560x1440			16:9		1.777~	Wide Quad High Definition is four times the res of 720p
WQXGA		2560×1600			16:10 (8:5)	1.6000	Wide Quad Extended Graphics Array
QSXGA		2560x2048			 5:4		1.2500	Quad Super Extended Graphics Array
WQSXGA		3200x2048			25:16		1.5625	Wide Quad Super Extended Graphics Array
QUXGA		3200x2400			 4:3		1.333~	Wide Quad Ultra Extended Graphics Array
QFHD		3840x2160			16:9		1.777~	Quad Full High Definition is four times the res of 1080p
4K			4096x1716		  1024:429		2.386~
8K			7680x4320			16:9		1.777~

iPhone / iPod Touch	320x480		3.5" display. 2:3 aspect ratio. 262,144-color LCD at 163 ppi.
iPhone 4			640x960		3.5" Retina display. 326 ppi.
iPad				1024x768	9.7" IPS (In-Plane Switching) display. UVGA display. 4:3 aspect ratio. 132 ppi.
Google G1			320x480		3.1" HGVA display. Sliding wallpaper 640x480. 69.8 MB of free memory.
Google G2			480x800		3.7" S-TFT WVGA display.
Dell Streak 7		800x480		7" 16.2MP TFT WVGA display.
Motorola Cliq		320x480		3.1" HGVA display. 160 ppi / 187 ppi.
Google Nexus One	480x800		3.7" WVGA display
Motorola Droid		480x854		3.7" display. Just off 16:9.
Motorola Xoom		

YouTube Video Quality for iPhone
320x240	Original
480x360	March 1st 2008

Bibliography
------------
http://en.wikipedia.org/wiki/Display_resolution
http://en.wikipedia.org/wiki/Graphic_display_resolutions