Upgrade the battery on your Treo 600

Will it void your warranty? Most certainly. But if you can't get enough juice for your Treo 600, PDAparts is selling a DIY internal battery upkit that they claim takes only five minutes to install and will get you an extra 25 to 30%
increase in battery life. They'll also do the upgrade for you for a fee, sonething which still voids the warranty, but at least you'll have someone else to blame if things go awry.