I am new to the smart phone game and just purchased a used LG 3g T-Mobile phone.
Now can my 3g do everything a 4g can do except at a slower speed? Thank You

Yes 4g is nothing more than faster data rates. Me personally I have a 4g phone and find myself hardly ever using it because of battery drain.

I have a first generation 3G phone, the G2 which tops out at 7.2meg down

Its been and I'm sure will continue to be perfectly fine for Internets access speed.

Thanks! So it should be good for a couple of years, maybe...

Now I would like to know why that touch screen only accepts my fat fingers and will not recognize a pointer like a pencil or something like that ?

Actually, I still like my old flip phone.

Must be because it's heat-based, so if you heat up the pointer with a laser beam then it should work. Just be careful not to melt your phone.