Sony confirmed that the update is out via its official blog. Next time you connect your tablet to Wi-Fi, you should see a notice offering you the upgrade.
A comprehensive list of new features is detailed on Sony's site -- the most interesting of which look to be direct SD card access, 'Small Apps' for multitasking and a beefed-up web browser that lets you save pages to view offline, and switch between a site's desktop or mobile version.
Once you've updated, tapping the power and volume down buttons will take a screenshot, making it easy to take a snap of your gaming high scores to send to, well, everyone you know. If you've updated your device, let me know what you think in the comments.
My esteemed colleague Andrew Hoyle gave the Tablet S the review treatment, awarding it a healthy three and a half stars, praising the decent screen resolution and quirky design. If you're shopping for an Android tablet, you could definitely do worse.
There's been no word on whether the Tablet S' little brother -- the fold-up Tablet P -- will also be getting Ice Cream Sandwich. I wouldn't be surprised to see the Tablet P stuck on Honeycomb, at least for the foreseeable future. I imagine the unusual shape could make a software update a tricky affair.
Are you a Tablet S owner? Or will this software update persuade you to splash out? Let me know in the comments or on our Facebook wall.