To coincide with the DVD release of Harry Potter and the Deathly Hallows: Part 1, Warner Bros has very kindly slashed the price of its iPhone Hogwarts tie-ins.
A much requested update, remedying a D-pad control issue, improved the wizardry experience tenfold, freeing players up to focus on casting spells and winning Quidditch matches.
The third-placed finisher on that fantastical Top 5 Harry Potter iPhone apps list Harry Potter: Spells transforms your mobile into a powerful wand. No, seriously.
Specific hand gestures onscreen translate (via some clever voodoo / hocus pocus) into awe inspiring spells, with which you can entrance and bamboozle your opponent.
Climb aboard your broomstick and download LEGO Harry Potter: Years 1-4 for £1.79 / £2.99 / €2.39 and Harry Potter: Spells for 59p / 99c / €0.79.