emoze, purveyor of a free push email client, has announced that GMail is now supported, meaning that you don't have to be running Microsoft Exchange (or similar) on your main PC to take advantage of 'push'. emoze isn't Java, either, being available in native S60 form. Here's the download page.

"RANAANA, Israel, August 28, 2007 – The first true push mobile email service for Gmail™ users worldwide, including Google Mail™ users (as the service is formally known in Germany, Austria and the United Kingdom), has been launched by emoze.

The free service, available for downloading directly to consumers’ mobile handsets at http://mobile.emoze.com, or via a web-based wizard at www.emoze.com, targets the millions of Gmail account holders (according to comScore Media Metrix) that would benefit from the automatic receipt of their emails on their wireless devices. emoze is committed to the democratization of mobile email by providing free push email service to the global wireless market that prefers to use any type of standard mobile device without the need for an expensive BlackBerry™ handset and monthly service. "