Not possible to get Multitouch on N900, Since it was not built to be Multitouch and there is no hardware supporting such activity.

Please merge with Multitouch with N900. This is the same.

lol. no this about fake multitouch. i know the n900 touchscreen is a single touch screen.

this is an example for the 5800.
http://www.youtube.com/watch?v=4dC2q...layer_embedded

this is just clever coding. but bassiclly it would be a two point touch device through clever software. this is one of the apps/plugin's i would acctually pay for and recommend if a developer created it for maemo5.

maybe have it as a mask over the whole interface which links to the volume keys that allow zooming in and out for certian apps. and have a disable and enable feature in the system shortcut section(the drop down box when you click on the time)


i know i couldnt code to that standard. This is something that would get the developer famous all over the internet

Threads merged.

Advantages

Resistive touchscreen technology works well with almost any stylus-like object. In some circumstances, this is more desirable than a capacitive touchscreen, which can be operated with only finger.

Costs are relatively low when compared with active touchscreen technologies.

Resistive touchscreen technology can be made to support multi-touch input.


source http://en.wikipedia.org/wiki/Resistive_touchscreen
can this be possible on n900?

No, it requires hardware different from what the N900 uses.

hi friends can I change display of my n900 with a resistive multitouch sensible-pressure display? Nokia technical center (or equivalent) can do that? (of course, paying!! )
I'd like to have my n900 with this kind of hardware display!
thank you for your replies...

No, not really, not unless you're an uber hardware hacker. The connection between the screen and the rest of the device will likely be different, and you would likely need different chips within the device to run the screen. Then there's the lack of multi-touch in the OS and apps.

Well apparently no one reads the thread before replying.

I think pseudo-multi touch would work but it would have several limitations. First of all, I am going to assume the software works like this:

1) default is single touch mode, remembering the last known position while the screen is being touched

2) if it detects a sudden change in location (faster than humanly possible to move your finger) then it will deduce that a second finger must have been used and the average value of the two touches is being "sensed". The two limitations here are that:

a) you have to put one finger before the other and
b) you have to put the fingers further apart than whatever distance is determined to be "too far" to move for a single finger in that time period

Once the software has determined that two fingers are being used, it is then going to switch to multi-touch mode.

3) If it detects another sudden change (2nd finger is lifted) then it will switch back to single touch mode. [I don't think 3-finger-touch will be possible]

As for the multi-touch mode, the software takes the currently detected location and, on the assumption that it is the average of two points, it can then simulate multi-touch. Obviously we cannot get two unknowns from just one equation so we must give it one fixed point. This means that the limitation for multi-touch gestures is that one finger (probably more intuitive to use the first finger which touched the screen) must not move.


So, to summarize:
I) Limited to two-touch
II) Must put one finger before the second
III) One finger must be stationary

This would still be useful for multi-touch gestures and could simulate the "pinch-zoom" everyone loves so much... just need to keep one finger still and pinch the other.

It should be better a n900 with real multitouch display...