i think you may be able to rebuild it with standard 18650 cells
(the battery itself can no longer be sourced
). i have two of these Phenom H-120CW16's, and both batteries for them still hold a charge, one lasts 4-5 hours maybe, the other 2-3
this is without connectivity
if you manage to rebuild yours let me know if it was easy
well, for text only internet it will be good enough, i have no idea about powerpoint, never tried it, but if you get the vga cable with the phenom you should be able to do that. and it is perfectly fine for writing, i really like the keyboard on these things!
so if it is cheap
(not more than 30$
) it is worth the money, but if it is more expensive that then maybe you could invest in a nec mobilepro 770. same good keyboard, newer OS, and batteries readily available. or even a 780 for 60$... then you can upgrade it to a 790
and these have the vga out too.