While highly unofficial – and the rendering you see above is of hdblog's "own creation and does not reflect the real shape" (and putting your blog on the phone's shell kinda gives that away) – the rumor surrounds an 800x480 AMOLED touchscreen, 5MP camera with stabilizer and flash, and a 624MHz processor. No word on RAM and ROM sizes.
Supposedly the Ominia Pro will become more official this summer and cost about 500 Euros. A launch with Windows Mobile 6.1 is mentioned, with an upgrade to WM6.5 to come.
That said, folks, here's a little tip from your friends at WMExperts: When you're sitting in your basement Photoshoping together a Frankenphone for the Internets, remember to slap on the Windows flag button if you're going to even mention Windows Mobile 6.5, m'kay?