Those ready to update should peep the Zune desktop software, although Nokia cautions not everyone will will get updated today, as coordinating across multiple carriers in different markets is like "herding sheep, " resulting in a multi-stage rollout in the coming four weeks.

ENGADGET: Nokia's Lumia 800 firmware update juices handsets, banishes battery issues

If you're on Android 2.2 or above get ready for an update to your Android Market experience.

ENGADGET: Google updating Android Market app on phones, adding Movies and Books tabs (video)

We imagine this change will upset many ThinkPad devotees, but given that we haven't seen a final production unit, we're not ready to pass judgement on the update.

ENGADGET

"Due to the increased risk to customers from these latest attacks, we were able to expedite our testing to ensure an update is ready for broad distribution sooner than April 10, " noted the blog.

BBC: NEWS | Technology | Quick fix for Windows cursor flaw

A.A. officials seem less interested in how it happened than in getting it ready for next year, when they fully intend to update it with the champions of the 118th Boston Marathon.

NPR: BAA: Support After Attacks At Race Overwhelming

Owners of current Windows Phone devices, known as Windows Phone 7, will be able to download the update on their handsets when it is ready.

FORBES: Microsoft Makes Windows Phone More Social, Intuitive With 'Mango' Update

We haven't seen the prompt ourselves, but Liliputing has some screenshots of it (shown above) and is reporting the update auto-downloads and notifies you when its ready to be installed.

ENGADGET

Microsoft said it expected to have the new version of the MS06-42 update ready by 22 August.

BBC: NEWS | Technology | Hackers target latest Windows fix