Acer has a new nettop called the Revo 70. The Revo 70 is tiny, like Acer’s previous nettop offerings, and measures 8.26″ x 8.26″ x 2.13″ at just 2.2 pounds.

The Acer Revo 70 has a 1.65 GHz AMD E-450 dual core processor, Radeon HD 6320 graphics, 2GB of RAM, and a 500GB hard drive. It runs Windows 7 Home Premium 64-bit, and features 802.11b/g/n WiFi, Ethernet, HDMI output, a VGA port, 6 USB ports, an SD card slot, and audio jacks.

According to the Acer website, the Revo 70 has a list price of $329.99.

Sapphire Technology has a line of nettops under the Sapphire Edge-HD brand and up until recently the company only offered nettops with Intel Atom processors and NVIDIA ION graphics.  Now, a new model is on the way with an AMD Fusion processor.

The Sapphire Edge-HD3 Mini PC showed up at the FCC website this week. It features and AMD E-450 dual core processor and Radeon HD 6320 graphics.  The nettop has  4GB of RAM and has a 2.5″ hard drive bay with support for up to 500GB of hard disk space. It also features WiFi, Ethernet, VGA, HDMI, and audio ports, as well as 2 USB 3.0 ports and 2 USB 2.0 ports.

Sapphire will load the Edge-HD3 with FreeDOS software, but it also supports Windows 7 or other operating systems.

The PC measures 7.6″ x 5.8″ x 0.9″ and weighs less than 1.2 pounds.

The folks behind the $25 Raspberry Pi have announced that they could start taking orders by the end of February.   They were supposed to be ready to go in December, but that didn’t happen. But not it looks like the first batch of 10,000 should finish production by February 20th.

The Raspberry Pi is a tiny computer motherboard with a Broadcom BCM2835 low-power ARM-based processor. It’s designed to be able to run Linux-based software and it’s targeted at hobbyists, educational institutions, or anyone who really likes the idea of a $25 computer.  There’s a slightly more expensive ($35) version if you want internet connectivity.

The system is designed primarily as a low power, low cost PC, it can handle 1080p HD video playback and even some 3D gaming. There’s also already a project underway to port the popular media center application XBMC to run on the Raspberry Pi hardware.

Broadcom has also released a datasheet (PDF link) for the BCM2835 chip which may make it easier for independent developers to work with the Raspberry Pi — but the chip still uses closed source drivers, so the datasheet will only get you so far.

Asus’s new super-slim nettop is called teh Eee Box EB1031. Despite it’s slim exeterior, it packs the latest and fastest Atom chip so far, the 2.13 GHz Intel Atom D2700 Cedar Trail processor with support for 1080p HD video playback;  The motheboard hosts up to 4GB of RAM, and a 2.5″ hard drive bay with support for up to 500GB of storage.  The EB1031 also as USB 3.0 support, HDMI output, a D-sub port, flash card reader and built-in WiFi.

No word on pricing yet,  but it should be available in March.  Asus is marketing this particular model for business and point f sale use, but hopefully Asus will offer a consumer version of the nettop as well.