Re-read the patents, some of them are very detailed, complete with illustrations. And after you read them, you'll even say to yourself, "Wow, some of this is so simple! You're telling me HTC, Google, can't come up with something that doesn't violate this!??!" Then you'll know what I mean about being lazy. HTC was lazy. In a way, Google was lazy too.
Re: Palm (and Google to a certain extent)
I don't think they'll sue Apple because right now, Palm, Apple and Google are mutually benefiting off each other's technology. Palm just isn't selling enough phones to really be on Apple's radar. So, it's almost symbiotic. Google is selling a bunch of phones, but who makes those phones? HTC (AH!!!). Apple benefits from some of Google's tech, and vice versa. Apple can put Google in its place a bit but cutting off their greatest supplier of Android phones.
I mean, with this lawsuit out, ever wonder why Apple didn't take a cut at Google?