I can try;D
Made in Photoshop.
#1 Add the blue background
#2 For the apple I used the apple in the Apple Symbols font. Used the Margee tool to cut out the apple to the shape of the one at Mac Forums. Colored the apple.
#3 Added the text and added an outer glow to the text.
#4 The snowmen were the hardest part.
Three circles placed stacked in snowman fashion. Then I used the brush tool to add the shading and the arms. The mouth I made with the pen tool and stroked it with the brush tool. Then the nose, I drew it of from another snowman I had found. Eyes, used Brush tool again.
#5 Stars were made with the Brush tool using the Crosshatch pattern and screwed around with the brush shape dynamics till it seemed right.
#6 The I added an Apple and an X. Turned the apple using the Transform command. Used the star brush to make some stars on the apple and X to connect with the pen tool. Then I stroked the path I had made with the brush tool set to 3 Pixels. Adjusted the opacity till the path connecting the stars looked right.
#7 Added a falling snow texture I had found.
It took me about 5 minutes to type this.
Took close to 2 hours to make the wallpaper. Most of that time was spend on the snowmen getting them just perfect.