In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
A free background tile with a pattern of pink bump dots. This background tile is sweet! Moreover, it's designed for use as website backgrounds.
Source V. Hartikainen
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
Neat little photography icon pattern.
Source Hossam Elbialy
A free seamless background with pink spots.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
From a drawing in 'An Old Maid's Love. A Dutch tale told in English', Maarten Maartens, 1891.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.
Source Yamachem