Yeah that is true. What I did was install a widget that disables WLAN. I disable WLAN everytime I quit browsing. The thing is let's face it..the N900 battery was never that good. It would still never really last you a whole day. Disabling power saving will make it last even less..but the inconvenience of charging often remains there all the same.

So I prefer having fast internet, because charging is mandatory either ways. But you must be careful to switch WLAN off each time. There is an applet that puts a shirtcut in that menu where the battery icon is ( forgot what it's called). I found that quite good. I can control Wi-Fi easily from there.

there is an app called auto-disconnect, that would be a good idea except that it often disconnects me while browsing so I disabled it.

About developing, I tried C++ but I found it very complex. I know it's one of the best languages, since it is closer to machine code but..I still have a lot to learn. I will try python though.