In design, the device seems to borrow quite a bit from T-Mobile’s Sidekick, and its touchscreen GUI owes a thing or two to Apple’s (AAPL) iPhone. Which makes perfect sense, since that’s the device it’s clearly intended to compete with. The G1 will run on both 3G and Wi-Fi and be tethered to the T-Mobile (DT) network. It will come preloaded with a version of Amazon’s MP3 store and Android Market, an application store similar to Apple’s App Store. And it will support and sync with the broad spectrum of Google (GOOG) apps–Google Talk, Google Calendar, etc. Its browser is something the dev team refers to as Chrome-Lite, a mobile version of Google’s new Webkit-based Chrome browser.

Oddly, the G1 has no built-in video player. Odder still, it has just 1GB of memory. T-Mobile has helpfully outfitted it with a 1GB/month bandwidth cap, though.

The G1 supports PDFs and Microsoft Office documents as well. Email will be handled through Gmail; there is no Exchange support, though presumably, engineers developing for Android Market will fill that void in short order.

Oh, the device offers copy-and-paste functionality. Hear that Apple?

It will arrive at market Oct. 22. Price: a highly-subsidized $179.

Late yesterday, the company announced plans to add support for the open source Open Document Format–a rival of Microsoft Word–to Office 2007. Beginning with Service Pack 2 for Office 2007, due in the first half of next year the market-leading productivity suite will offer ODF as a default file format and Adobe’s (ADBE) PDF (Portable Document Format) and Microsoft’s own XML Paper Specification as well. “We have heard from customers and governments that they would like to see us do this,” said Tom Robertson, general manager of Interoperability and Standards at Microsoft. “Now is the time to announce this support.”

“Now,” of course being short for “now that the European Commission is investigating us again over claims of monopoly abuse;” “support” short for “poor support.” At least that seems to be the position of the European Committee for Interoperable Systems, which is openly skeptical of Microsoft’s sudden commitment to genuine interoperability. “It is particularly striking that all of Microsoft’s latest policy statements on interoperability are still in the future tense, as though these were difficult technical objectives,” said ECIS spokesman Thomas Vinje. “They are not. A closer look at their substance suggests that Microsoft is still playing for time to further consolidate its super-dominant position, and that continued antitrust vigilance will be necessary.”

And continued antitrust vigilance is what Microsoft’s going to get. This morning the EC said it had “taken note” of the company’s announcement and plans to study it. Said the EC, “In its ongoing antitrust investigation concerning interoperability with Microsoft Office, the commission will investigate whether the announced support of ODF in Office leads to better interoperability and allows consumers to process and exchange their documents with the software product of their choice.”