Amazon says that it "may be able to incorporate" Liquavista's colour e-ink technologies into future products "over the long term", which suggests that a colour e-ink Kindle may be on the way but certainly isn't imminent.
"The Liquavista team shares our passion for invention and is creating exciting new technologies with a lot of potential," the Amazon spokesperson added.
"It's still early days, but we're excited about the possibilities and we look forward to working with Liquavista to develop these displays."
Now join us over at the speculation station: Amazon may already have colour tablets on the market in the form of the Kindle Fire range, but a colour e-ink ereader, with its similarities to reading from the page, could be just the thing to persuade the last remaining print-loving luddites that digital reading isn't the devil's own game.
What's more, with colours and a touchscreen in the mix, some simple apps could even hit the ereaders too - after all, what people really need are more distractions when they're trying to read.
Sign up to receive daily breaking news, reviews, opinion, analysis, deals and more from the world of tech.
Former UK News Editor for TechRadar, it was a perpetual challenge among the TechRadar staff to send Kate (Twitter, Google+) a link to something interesting on the internet that she hasn't already seen. As TechRadar's News Editor (UK), she was constantly on the hunt for top news and intriguing stories to feed your gadget lust. Kate now enjoys life as a renowned music critic – her words can be found in the i Paper, Guardian, GQ, Metro, Evening Standard and Time Out, and she's also the author of 'Amy Winehouse', a biography of the soul star.