Assuming you have a good sense of humour - or of irony - then make a beeline for this free theme on the Nokia Store: "Burning Platform", a direct reference to Stephen Elop's famous 'leaked' February 2011 memo talking about the unsustainability of Symbian (and Meego). Whatever you think about the direction that Nokia's taken since (and the effect on sales), why not put a big defiant grin on your face by using this rather splendid (and thoroughly usable) Burning Platform theme on your all-singing, all-dancing Symbian smartphone? Screenshots below.

Homescreen and main application menu - the way the flames lick along the bottom and up the side is really rather splendid. 

Pizero's usual attention to detail is here, with every element customised and themed (e.g. the current day highlight on the Calendar).

There - not bad for a 'burning platform', eh? 8-)

Grab Burning Platform from the Nokia Store here - it's free!