Boeing [NYSE: BA] today unveiled the new 737-900ER (Extended Range) airplane before thousands of employees and guests at the company's Renton, Wash., manufacturing facility. Indonesian dancers escorted the newest member of the Next-Generation 737 airplane family along the south shores of Lake Washington as employees and 737 supplier representatives, local and Indonesian government officials and Indonesian launch customer, Lion Air, looked on. The first 737-900ER will be delivered to Lion Air in the spring of 2007, following a five-month flight test program.