Firefox 1.1 on Maemo lets you browse with your phone in a portrait orientation as well as landscape.
The browser will switch orientations automatically as you reposition the phone, as you would expect. Some browser screens are the same, only taller; others change their layout slightly to better fit the screen on which they find themselves, such as the tools screens.
If you'd like to lock the screen orientation - say you're lying down but want to read in portrait:
you can use the standard Maemo screen orientation lock key-combination to do so: Ctrl-Shift-O.
Firefox tries everywhere it can to minimize the amount you have to type; this is especially true on mobile devices, where typing is usually so much harder than on a full-scale keyboard. In Firefox 1.1 on mobile devices like the N900, we've added a finger-friendly version of something you're used to on the desktop: form field autocompletion. Using an algorithm similar to the one that powers the awesome bar, Firefox will suggest entries appropriate for the form field you're based on what you've entered before. For forms you use a lot – checking into a flight, entering your address – a single tap can replace a lot of messing around with a keyboard.
One twist that makes this even more helpful is that the Weave Browser Sync add-on will now synchronize form autocomplete data, with the result that Firefox on your mobile can help you complete forms that you've only ever worked with on your desktop computer before. With sync, you don't need to wear-in Firefox on your mobile - it can provide as much help as Firefox on your desktop system already does.
One of the most requested features after we released Firefox on Maemo (Fennec) 1.0 was for a way to "free-form" zoom. Fennec already supported what I call a "structured zoom" - that is, double-tapping that zooms to fit the part of page structure (a column of text, an image) that you're tapping on. That method doesn't help you in every circumstance, though, and that's where a free-form or arbitrary zoom mechanism is useful.
Devices that support multitouch almost all now use the pinch-to-zoom gesture for this, and that's what Fennec will do on such devices as well. The Nokia N900, though, is single touch only, so for version 1.1, Fennec makes use of the device's rocker button to allow free-form zooming in and out:
Two interesting things!
Ideally, you won't notice either of these things in day-to-day use; it should just feel like it works the way you'd expect.
Mark Finkle, Vivien Nicolas, Felipe Gomes, and I have put together a blog post about Smart Tap, the technique we're using in mobile Firefox 1.1 to make tapping on small links, fields, and buttons much easier.
From a user's perspective, tapping on small targets should just work out the way you intended more of the time. Behind the scenes, there's a lot more going on to make it feel this way: a larger and up-shifted invisible tap region around the point of touch-contact; favoring higher z-ordered elements; and favoring visited links over unvisited ones, to name a few. Read the full post for the whole story, and let us know how you find it working when you try out 1.1.