The Nokia N800 linux tablet has both touch and tablet screen. How did they realize that, I do not know. It seem that they left this concept on the newer N810 which only has stylus. All the new gadgets indeed seem to have only touchscreens for fingers and no stylus. They want us to write by fingers! Well, not really. They now only address the entertainment and browsing and social media..... I face the same problems as you. What I do is to use Macbook with an external Wacom drawing tablet. One can scribble equations and small drawings, exactly as I would do on the blackboard or on paper. Mac has this fantastic screen capture (but you must reprogram the hotkey, otherwise your fingers get confused by command shift 3 or whatever they had as default) and you paste the drawings quickly into OpenOffice or any other software which can import pictures directly. It is not really designed for such use, but it works...... It is a pity that the designers do not follow us who are doing real mathematics or physics (or chemistry) work. The entertainment and "user experience" seem to be the only leads the designers follow - except naturally the typing. But it takes time to type an equation, while it takes no time to write it.

There naturally are enterprise solutions. We have one at our University - home made from downloaded distribution. But I am sure you can set it up using full commercial support. Or Scientific Linux at CERN or Fermi lab have various such options.

This is about the largest collection of lies one can collect.

A) installation is in many cases easier than windows, if you are not unlucky. The netbooks which came with linux had no installation problems. It was preinstalled. On desktop, you are not supposed to install and install. It should be there, ready for use. If you are unlucky with windows, you can have a big trouble too.

B)Driver support. The heros of Linux provide amazing ammount of working drivers - often reversed-engineered. The whole drivers complex is built and engineered by Microsoft. In an ideal world there are no drivers. Only interfaces which work. Look at hardware. Or - you do not need a driver for postscript printers.

C) Software: there is enormous amount of software and it is easily installed. Now I copy something I wrote somewhere else:

Why exactly is that so that some stuff is only available for Windows? Some people or even a single person wrote an interesting program. If they are "selling " it as shareware, they can not reach the Macs and the Linux. Why? Because they are locked into the windows. In ideal world they could have started with QT or GTK and their application would be crossplatform for ever.

In our world their application is one of the indirect reasons for the virus plague (infinite backward compatibility of windows 'installations' and registry) and they loose potential costumers.

Big companies like MathWorks (matlab) and Wolfram (mathematica) are keeping their products on Macs, Linuxes as well as windows. The small guys could too, if they were not dragged into the abyss of partially free copy of Visual Studio and the MS locking tricks.

So it is not a shortcoming of Linux, but a success of the domination and locking strategy of Microsoft. I do not play games, but everything I like and need strangely enough sooner or later becomes cross-platform. I am lucky.

And so on, and so on ....

You are either simply lying, or you talk about something you have no idea about.

Commodore 64 was completely secure since the OS was burnt in. You could carry some strange things on the floppies, which could perhaps develop into some virus-like things written to that expensive floppy drive, but basically, commodore 64 was safe. We should start going a bit backwards. Some things should be unchangeble. Burnt or wired in. Open source burned, preferably.

There are Portable Apps: http://portableapps.com/, now profiled as something you can
carry with you on your USB memory-stick. These are applications like firefox, gimp,
etc etc, which do not need "to be installed". They have been modified to ignore
as much as possible all that MS-registry nonsense. You can guess: when I need to install
firefox on some computer, I just simply copy the portable one to some suitable place
on the disk, and I do not need to be "Administrator" or whatever they call it.

So instead of inventing installers, one should be "inventing" "portable Applications".
Be it on windows-whatever or even on linux