Lexmark pushes out a passel of wireless printers: The models run from $130 to $200. The printers all handle two-sided printing, which, in Lexmark's words "saves paper and the environment." Whew, I was worried about the environment, and printing on both sides of a sheet of paper apparently saves it. Three of the models are multi-function printers (MFP in industry parlance), which print, copy, scan, and fax. Lexmark is calling them all-in-one (AIO), just to be different.
The X6570 ($150) has 28 ppm (page per minute) black and 24 ppm color printing (draft mode print numbers, naturally, a footnote explains). You can remotely control the printer to scan, fax, and read memory cards inserted into a media slot. There's a 25-page document feeder, too. The X7550 ($200) ups the rate to 30 ppm black and 27 ppm color while including an LCD display for photo preview via the media slot. The X4850 ($150) appears to omit the fax feature, although Lexmark is unclear about that.
Lexmark also added the Z1520, which is just a wireless color printer (30 ppm black, 27 ppm color) for $130. You can also get wireless-omitting versions of the AIO printers, too, that have various subtle differences to boot (the X5070, $90; and X5495, $100).
Interestingly, Lexmark only uses the terms 802.11b/g/n, and then only in a footnote. That makes me suspect that the printers haven't achieved Wi-Fi certification yet. They're not in the Wi-Fi Alliance's list of certified printers, although the previous X4500 series is listed. It's an odd thing today to see "Wi-Fi" products without the Wi-Fi brand.