i didnt read the thread properly its late here
cherry can be removed
cutetube for youtube videos
operamini for fb or news/article reading with a gazzilion tabs and multiple instances
get a 1500mah battrey and never complain about 3g as battrey life in 3g is crazy depends upon bandwith used distance from base etc
no need to use maemo.org applet as ham is ok or you can use maemo.org to install the same
720p works to some extent but i say dont bother with it at the moment better convert your videos which you like to watch on n900
for maps try modrana its good and updated if you can handle it i.e works nice but when i switched it felt like a new operating system to me frankly
use the terminal for stuff you cant manage with ham as you are new and yes the terminal is fine like a dextop
unup works i need to look how my n900 manages it
hostmode can be installed from ham and it works too just less bandwith if you plan to transfer large files
install openmedia player from ham as i feel its better than the stock one
for hotspot if you need use qtmobilehotspot
install opera mobile works nice on many sites
but if you need stuff like bluemaemo its better to install it in freshly flashed system as installing it is a headache afterwards

but before all that do a full flash and upgrade to cssu stable or testing as there are a lot of updates and very noticeable improvents to stuff like ham

most important ask clearly whatever you ask so that willing people enjoy helping you
thanx
good night