ui-design

Android and iOS have a concept of a "density independent pixel" so your layouts look the same on devices with different densities and screen sizes. Up until now I've written code to manually space elements using pixels (i.e. I want this button to be 10 pixels from the left side of the screen). This is great on a Curve, but when I load it up on a Bold the resolution is much higher, so 10 pixels is a much smaller physical space. What are the best practices for multiple screen sizes on BlackBerry? Is there any easy way to define a density independent pixel? RIM seems to not offer much in terms of

So we're re-designing a desktop application so that it's also usable with thye Touch Interface with Windows 7. We've consulted the UX guidelines. For some part of the UI, there are toolbox icons that are disabled because of some arcane rules (the software communicates with a hardware device). We disable the actions that aren't applicable (because of some condition) and let the user hover the mouse on the tool icon to see the tooltip explanation on why that tool is disabled. Since there is no "hover" for the touch interface (windows 7, iphone, ..) what is a better pattern/model for this? Thanks

Just curious about the control shown below, the straight line with label beside it. I tried to find a similar control for it but there was none nor any group box setting, so instead I just made a GroupBox with a height of 2 that replicates it. But is there an actual control or setting to do this? And what is the actual control called? Spy++ tells us those are actually two separate STATIC controls (similar to a Label in WinForms). The first is simply a regular static text control that says "Home page". The second has the SS_ETCHEDHORZ style set, which makes it draw as a 3D line. Unfortunately,