Those looking for a decent entry-level smartphone might consider the Orange San Francisco II, also known as the ZTE Crescent. The phone, which was originally available for £99, can now be purchased for a mere £77 from Argos, including a £10 compulsory top-up.
The first San Francisco was launched back in 2010; a combination of great pricing and superb display meant that it was an instant hit with us.
The OSF II improves markedly on its predecessor. It has a better processor (a Qualcomm Snapdragon MSM7227, clocked at 800MHz), with 512MB of RAM and running the Android 2.3 Gingerbread OS. There is also a 5-megapixel camera with a flash, while it has retained the same 3.5in 800 x 480-pixel capacitive display.
It is locked to Orange, but you should easily be able to unlock it online. There are already numerous online resources that will explain how to unlock, debrand and root the phone as well as plugging in a new ROM (Cyanogenmod 9 being the most common out there).