The P990, announced almost exactly a year ago (October 2005), was and is one of the most hotly anticipated phones of 2006.
At the time it was announced, its specification was almost unmatched.
The top of the device houses both the power button, which can be used to switch to flight mode, and the Ir DA window.
The jog wheel and back button are located on the left hand side of the device.
These are primarily used for navigating around the UI.
Unfortunately it can be a little fiddly to move quickly between the two.
Its three predecessors have created a line that is the most iconic smartphone design in the world.
It is pocketable for those with big pockets, but many will want to carry it in a bag, briefcase or in a holster case.
The decreased screen size means that the P990 (over the P910) feels less pad-like in flip open mode, but the higher pixel density adds a crispness to the screen, which is among the best I have used.
The internet key can be customised to launch a variety of built-in applications; a good choice for power users is the built-in Task Manager application.
The bottom of the device houses Sony Ericsson's proprietary Fast Port connector, which allows charging via a standard plug or charging and PC connection via the supplied USB cable.