Is there another way to to unlock the screen without using power or side slide buttons?
something like tapping the screen for few seconds and then open it, or using sensors?!

Also, is there any widget to lock the screen?

I'm trying to not use that buttons too much and use touch screen instead.

thanks.

try opening the phone..i find that quite a useful way to unlock it

How many ways do you need?
You can double tap the power button, single click power button and select "Lock screen and keys" or slide the switch.

If you know your linux command line you could write a .desktop file to run a script to lock it, sorry I don't know how though.

@James, i assume you mean opening keyboard, i'm trying to minimize hardware interaction, like sliding...etc.

@JonWW, i'm looking for alternatives if there are, i don't want to use power and side slide buttons.

You can re-map keys to do things, maybe camera key (possibly a bit too easy to unlock by mistake).

How about making the phone auto lock when it gets dark (in your pocket) and auto unlock if it becomes bright again (taking out of pocket)

What else you need? IIRC we have some kind of telepathy app on phone and in manual should be instructions how to make hadnshake to n900 with just thought.

Exactly, anything like that, i want to be able to unlock it without pressing any "button", something like touching screen, or as you said take advantage of sensors.

Or maybe as slender said, shaking the device to unlock would be quite cool.

oh my g.

I would pay for an app/hack that does this:

1. Make the camera protector/slider not activating anything.
2. No screen-slider/swipe to activate anything.
3. No incoming call or other sms mms or mail can be answered before the slider on the right side of the phone is used.

Yes, I like that.
Do you think we can make this an "App request"?