Ukbd is described as 'Uinput based virtual keyboard library and gtk application' and is an app. There are more than 10 alternatives to Ukbd for Windows, Linux, Mac, Linux Mobile and PortableApps.com. The best Ukbd alternative is Onboard on-screen keyboard, which is both free and Open Source. Other great apps like Ukbd are Free Virtual Keyboard, F Key Sender, Dasher and Microsoft On-Screen Keyboard.
KeyStrokes™ is an award-winning, fully-functional, advanced on-screen keyboard providing people with physical impairments as well as graphic tablet and touch screen users full access to the computer.
xvkbd is a virtual (graphical) keyboard program for X Window System which provides a facility to enter characters onto other clients (software) by clicking on a keyboard displayed on the screen. This may be used for systems without a hardware keyboard such as kiosk terminals or...
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