can i use the ipod touch v2 as a tablet?

i have an ipod v2 and i would like to use it as a tablet for my computer. i do not plan to jailbreak it in the near future, so is there a way i can use it as a tablet or mouse? i just want to like draw some pix on it and hey will automatically and quickly be transfered to the screen (like a picture or sumthin) or if i can use it as a mouse i just need an app that will let me do that... thanks

and i will not get any paid apps, mostly cuz of my parents