I just had the chance to sit down with a computer that has a Hebrew version of Windows Vista installed. I have to say, it's all damn backwards! I'm not sure what to make of any of it...
Actually it's very dramatic, unfamiliar, but recognizable. It makes me nauseated to look at the screen for too long. Not just the text is from right to left, that I can handle. But the start menu, the clock, the little - [] X in the top is on the other side, everything. I find myself constantly going left, then realizing that I need to go right to click something. Way too many years of built up reflex and intuition.
Bottom line, if I do end up going to Israel, I'll be getting a hebrew keyboard, installing all of the hebrew language files and fonts, I might even let the OS change some of the words. The language can be right to left all it wants, but my applications and by extension my brain will likely never catch on.