After installing the official Froyo update yesterday, I've seen my battery performance nosedive significantly. Previously I've taken some pains to minimize my battery usage the last few months and have been fairly successful (screen brightness, gps, wifi etc.). Today I have noticed an immediate increase in battery drain. My phone was fully charged during the upgrade. After unplugging it when I got up this morning, for example, I had to plug it in later after almost no usage because it was down to 40 percent. After the charge, I unplugged it and it dropped to 87% in 35 minutes with almost no use. After just 3 hours, it was down to 42%. I've gone through all the settings to make sure everything was where it was before. It's obvious to me something is going on with Froyo. Anyone else notice the same?