Humble Bundle for Android 3 - PWYW includes 4/9 Steam ($1 min) games: Fieldrunners, BIT.TRIP.BEAT, Spacechem, Uplink, & if you BTA of $6.14 Spirits, Anomaly Osmos World of Goo Edge

www.humblebundle.com

As well as the Android versions the bundle also contains Steam codes, as well as soundtracks for each of these games (FLAC and MP3)!.
BIT.TRIP.BEAT [steampowered.com] RRP $9.99
Uplink [steampowered.com] RRP $9.99
Spacechem [steampowered.com] RRP $9.99
FieldRunners [steampowered.com] RRP $4.99

Beat The Average Bonuses
Spirits [steampowered.com] - this [spacesofplay.com] but page in the Steam catalogue not activated yet.
World of Goo [steampowered.com] RRP $9.99
Osmos [steampowered.com] RRP $9.99
Anomaly Warzone Earth [steampowered.com] RRP $9.99
Edge [steampowered.com] RRP $7.99

Note if you're actually buying for the Android component, uplink is tablet only and Spacechem is is designed for devices with a resolution of 1280x800 or greater

Typical Humble FAQs (obviously these answers could change with this bundle):
Bundle is PWYW, but you need to pay at least $1 to get Steam codes.
Buy early in case extras are added. Typically a new item is added to the Bundle after a week, new buyers have to BTA to get it, but if you already bought the bundle you should receive it.
You don't get individual codes or extras of games you already own. You'll get one code for paying $1 or more, and a second if you beat the average.
Bundles typically launch at noon central (aka Steam o'clock)


If you're looking to add to your Steam library, check out these other Indie Bundle threads:
Indie Royale Gone Fishin' Bundle discussion thread - Steam codes for SOL: Exodus, All Zombies Must Die!, Cubemen, plus Desura codes for Squids and two different Platformance games.
IndieGala 7 discussion thread Get 2 bundles of 9 Steam games (18 Game codes total!) for $7.50, one for you, one for a friend. Individual codes too, so you can keep the extras for trading!