Creating an "ultra portable" laptop substitute

[TIGER02]

Ok, i've heard this mentioned before but i wanna get some feed back on the idea. I own a touch and a mogul but i want to use the mogul as a laptop replacement so to speak. since it has a keyboard and mouse i want to know what apps i should install to improve functional usage as well as get some ideas of what else to do wit it. I like the device because it has everything built into one device and the lag due to processor speed is ok at times. So what are your thoughts, as far as software.