#sooner
HTC EXCA300's (Google Sooner) software
Source

I know this isn't technically a Google prototype, but I found it interesting enough

There are more screenshots on the original article page and on betawiki, check it out!

The build has been dumped on archive.org

• Android htc-29386.0.9.0.0 build
• google-sooner-htc-29386.0.9.0.0 identifier

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#mako
Google Nexus 4 prototype
Source

• Android 4.1.2
• Not for sale engraving on rear
• HW Rev 1.0

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#angler
Google Nexus 6P prototype
Source

• Engraving on display
• Q instead of Google logo (there was also a proto with O on the back and no 6 circles)
• 6 dots on back

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#mako
LG Nexus 4 prototype
Source

• Rectangle housing to hide phone's design
• LG stickers
• Internal build of Android 4.1.2

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