User:Hum/Surviving a GPRS connection
Neo Freerunner supports GPRS, no EDGE, no UMTS.
Making a slow internet connection more comfortable
Fasterfox Lite is an addon for Firefox. Its intention is getting web pages faster on fast connections, but it also can be used for configuring Firefox easily. You can configure memory and disk cache, DNS Cache and how many connections are opened at once.
wwwoffle is a proxy, that can be configured to violate the RFCs to cache websites even more aggressiv and several other helpful things.
To make sure that opkg upgrade does not break your system because of a unstable connection do:
opkg update opkg --cache cachedir --download-only upgrade opkg --cache cachedir upgrade
DNSmasq is a small caching DNS and DHCP daemon.