Interesting Bitcoin is hanging around 160,000 unconfirmed transactions yet total fees are only about 23 bitcoins with 3.4 transactions per second coming in.

The raw number of unconfirmeds are still high (normally I'd expect 50k or so) but the fees went down from thousands of bitcoins to a double digit number. Does this mean:

1) The remaining transactions are probably spam/dust
2) Fees to use the chain should be down
3) This is a good sign

?