Back in July, Google began issuing warnings to mobile searchers when a search results displayed lead to a site that uses flash.
Google's Pierre Far announced today on Google+ that this is now rolling out globally with language support so the message is tailored to the user's language.
Pierre wrote:
A quick heads-up: Snippets indicating Flash-heavy pages on mobile SERPs start rolling out globallyA few months ago we announced that we'll indicate to English-language searchers in the US on mobile if the page uses Flash and so may not work on their phone.
Starting today, we'll start showing a localized version of this snippet for Spanish searches on google.es, Japanese queries on google.co.jp, and English queries on google.co.uk.
And, as always, make sure your site uses technologies supported by mobile devices if you care about mobile users (you should :) ). The only universally-supported technology is HTML5/CSS/JavaScript.
So stop using Flash - at least if you want mobile Google click throughs.
Forum discussion at Google+.