In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Groovy Concentric Background
Source GDJ
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Abstract Tiled Background Extended 12
Source GDJ
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
This one needs to be used in small areas; you can see it repeat.
Source Luca
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ