Mobile search advertising spending in 2008 will top $445 million more than 34 percent of total mobile adspend according to a new forecast released by market analysis firm Juniper Research. Juniper adds that mobile search adspend will increase to more than $2 billion by 2013, while total mobile adspend will accelerate to more than $7.6 billion--in total, mobile search will yield revenues of $4.8 bi