[T-Mobile Sidekick 4G] MrKickstand:
Ok Maybe this is just a random theory of mine, or just random stupidity, but please follow along here. This is an idea of mine that came from how the HTC Dream and the HTC Sapphire could basically use the same roms, basically because the two phones where so close in spec details. So in theory (taking a device from around the same date, in this case the Sidekick 4g and the Galaxy S 4g) two devices with very, very close specs might work on each other. Ill put the phone specs below.

Galaxy S 4g
General
2G Network	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 1700 / 2100
Announced	2011, January
Status	Available. Released 2011, February
Body	Dimensions	122.4 x 64.5 x 9.9 mm
Weight	118 g
- Touch-sensitive controls
Display	Type	Super AMOLED capacitive touchscreen, 16M colors
Size	480 x 800 pixels, 4.0 inches (~233 ppi pixel density)
Multitouch	Yes
Protection	Corning Gorilla Glass
- TouchWiz 3.0 UI
Sound	Alert types	Vibration; MP3, WAV ringtones
Loudspeaker	Yes
3.5mm jack	Yes
Memory	Card slot	microSD, up to 32GB, 16GB card included, buy memory
Internal	1GB ROM, 512 MB RAM
Data	GPRS	Yes
EDGE	Yes
Speed	HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
WLAN	Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot
Bluetooth	Yes, v3.0 with A2DP, EDR
Infrared port	No
USB	Yes, v2.0 microUSB
Camera	Primary	5 MP, 2592 x 1944 pixels, autofocus
Features	Geo-tagging, touch focus, face and smile detection
Video	Yes, 720p@30fps
Secondary	Yes
Features	OS	Android OS, v2.2 (Froyo)
Chipset	Hummingbird
CPU	1 GHz Cortex-A8
GPU	PowerVR SGX540
Sensors	Accelerometer, proximity, compass
Messaging	SMS(threaded view), MMS, Email, Push Mail, IM, RSS
Browser	HTML, Adobe Flash
Radio	No
GPS	Yes, with A-GPS support
Java	Yes, via Java MIDP emulator
Colors	Black and Grey
- Social networking integration
- Qik services for video calls
- MP4/DivX/WMV/H.264/H.263 player
- MP3/WAV/eAAC+/AC3/FLAC player
- Organizer
- Image/video editor
- Document editor (Word, Excel, PowerPoint, PDF)
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa integration
- Voice memo/dial/commands
- Predictive text input (Swype)
Battery	Standard battery, Li-Ion 1650 mAh
Stand-by	Up to 300 h
Talk time	Up to 6 h 30 min

Sidekick 4g
General
2G Network	GSM 850 / 900 / 1800 / 1900
3G Network	HSDPA 1700 / 2100
HSDPA 2100
Announced	2011, March
Status	Available. Released 2011, April 20th
Body	Dimensions	127 x 61 x 15 mm
Weight	162 g
Keyboard	QWERTY
Display	Type	TFT capacitive touchscreen, 16M colors
Size	480 x 800 pixels, 3.5 inches (~267 ppi pixel density)
Multitouch	Yes
- Optical trackpad

Sound	Alert types	Vibration, MP3, WAV ringtones
Loudspeaker	Yes
3.5mm jack	Yes
Memory	Card slot	microSD, up to 32GB, 2GB included, buy memory
Internal	1 GB ROM, 512 MB RAM
Data	GPRS	Yes
EDGE	Yes
Speed	HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
WLAN	Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot
Bluetooth	Yes v3.0 with A2DP
USB	Yes, microUSB v2.0
Camera	Primary	3.15 MP, 2048x1536 pixels, autofocus
Features	Geo-tagging
Video	Yes, D1 (720x480 pixels) @ 30 fps
Secondary	Yes, VGA
Features	OS	Android OS, v2.2 (Froyo)
Chipset	Hummingbird
CPU	1 GHz Cortex-A8
GPU	PowerVR SGX540
Sensors	Accelerometer, proximity
Messaging	SMS(threaded view), MMS, Email, Push Email, IM
Browser	HTML, Adobe Flash
Radio	Nо
GPS	Yes, with A-GPS support
Java	Yes, via Java MIDP emulator
Colors	Matte black, Pearl magenta
- SNS integration
- T-Mobile TV
- MP4/H.264/H.263 player
- MP3/WAV/eAAC+ player
- Organizer
- ThinkFree Office document editor (Word, Excel, PowerPoint), PDF viewer
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa integration
- Voice memo
- Predictive text input
Battery	Standard battery, Li-Ion 1500 mAh
Stand-by	Up to 456 h
Talk time	Up to 6 h 30 min

I'm not trying to get the development section of this device's hopes up, but, in theory this might work. So im going to start testing Rom's from the Galaxy S 4g to see if they work on the Sidekick 4g. I know there is another device with the same specs as the Sidekick, but, i sadly dont remember what it was so i cant look into testing Rom's from that device. There is basically no risk from trying this if some people want to try this theory also since this phone is basically unbrickable and you can use the UnBrickable Resuscitator to go back. Ill keep every on up to date with the progress of this and let every one know if and when a rom thats either Gingerbread or ICS works with this. I say again this is just a theory that im going to start testing. Its nothing set in stone.