Nicole Richie has been a very busy lady! She was in New York City to launch her second novel, Priceless, and to promote her Winter Kate fall 2010 line.For her appearance at Borders Books & Music Miss Richie opted for a Winter Kate "Ebony" velvet jacket available here for $395.On her feet were the infamous Christian Louboutin fall 2010 Lipspikes boots ($1395).While out in NYC Nicole dressed