Per the OFHEO:
U.S. home prices increased only slightly in the second quarter of 2007 according to the OFHEO House Price Index (HPI). The HPI, which is based on data from sales and refinance transactions, was 0.1 percent higher in the second quarter than in the first quarter of 2007. This is below the revised growth rate of 0.6 percent for the previous quarter and the lowest since the fourth quarter of 1994. Prices in the second quarter of 2007 were 3.2 percent higher than they were in the same quarter of 2006, the lowest annual price change since the 1996-97 period. OFHEO's purchase-only index, based solely on purchase price data, indicates less appreciation for U.S. houses over the past year than does the all transactions HPI. The purchase-only index increased 2.6 percent between the second quarter of 2006 and the second quarter of 2007, compared with 3.2 percent for the HPI. However, for the second quarter, the purchase-only index increase was slightly higher at 0.5 percent (seasonally-adjusted).
We're getting closer to an outright decline in housing prices.