Design : This is the smallest phone I've seen in my life after Xperia
X10 mini.Good built quality, feels good & comfortable in hands!

Display: Good but it's just 3 inch! Not recommended for those who use
their mobile as ebook reader!

Camera: Average camera, quality slightly below samsung's 5mp
shooters!

Performance: Amazing for this price tag. With Snapdragon S2 MSM8255
processor combined with Adreno 205 GPU & 512 MB ram it gets the job
done. The phone is swift & ran almost all games !

Software: Sony's four cornered UI is way better than Samsung's
Touchwiz or HTC's Sense and its not memory bogging.
*Timescape
*Overview of widgets
*option to create folders
*uninstall apps directly on home screen you dont need to go to
settings.

Battery life: Average battery life. By reducing your phone's
brightness to around 70% & installing juice defender you don't have
to worry about battery life

PROs: "ICS update in March or April"
*Captures 3D panorama stills
*Sony Ericsson's UI
*Packs good specs (same processor & ram of Xperia pro & Neo V)
*Portable WiFi hotspot option
*Web Flash support

CONs:
*Lacks front facing camera
*small screen
*average battery life