The TriDef system can take standard 2D content and make it appear 3D. The laptop is priced starting at US$799, and is available at a few retail stores, Acer said. The company didn't comment on worldwide availability.

HP will start shipping a new multitouch-enabled all-in-one PC on Thursday. The is powered by Intel processors and is priced starting at $1,049. It comes with a 23-inch screen on which multiple fingers can be used to manipulate images, scroll through documents or zoom into maps. Touch can also be used for applications like Twitter or to view videos from sites like Hulu. The PC also connects to game consoles like Xbox 360, PlayStation 3 or Wii for users to play games.

Upgrading to Windows 7 from Vista could be difficult, so HP is also offering some help. The company has a where community members can ask experts and company representatives about transitioning to Windows 7. The company is also maintaining a where users can access other resources, including how-to videos.

Lenovo on Wednesday announced it would offer many of its existing ThinkPad and Idea-branded PCs with Windows 7. The company also announced new ThinkPad SL410 and 510 budget laptops, which include troubleshooting tools that ease system maintenance and tasks like data backup and recovery. This can help smaller companies that don't have an IT staff, Lenovo said. Starting at $529, the laptops will be available at retailers like Tiger Direct, Amazon.com and select Best Buy stores.

Lenovo said it has designed the laptops to work with Windows 7, improving speed and performance. The company claims that select Think PCs with Windows 7 boot 56 percent faster compared to running Windows XP or Windows Vista.