LAS VEGAS—Dell this week unveiled a prototype of a pocket-sized HDMI stick that can turn any compatible display into a virtual PC capable of running Android apps or remotely accessing Windows apps on a cloud service or remote PC.

The concept device, called Project Ophelia, is the creation of Dell Wyse, the business unit formed from Dell’s recent acquisition of Wyse Technology. Former Wyse CEO Tarken Maner, now VP and general manager of Cloud Client Computing at Dell, expects the device to cost under $100 at launch.

The HDMI interface allows its use with big-screen displays such as HDTVs, making Project Ophelia a relatively inexpensive way to create a computer anywhere the stick can connect to a network via Wi-Fi or Bluetooth. Maner believes telecommunications companies wishing to sell cloud services (for example, access to Microsoft Office apps or data centers) might subsidize the device much the way they discount cell phones to customers who commit to service contracts.

However, Project Ophelia does face some significant potential obstacles. While many hotel rooms have TV sets with HDMI ports, keyboards and mice are not typically available—and if you have to bring them with you, you’ve now added both cost and bulk.

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