Right now the visa bulletin shows the current date as Jan 2010 for Family-Based 2A category. Dose that mean If anyone filing I-130 & I-485 for spouse will be getting GC with in a year ? When can a GC holder file I-130 & I 485 for spouse ? After filing I-130 & I 485 for spouse, Will Spouse get eligibility to stay in US ?

You would be able to file an Immigrant Petition for an Immediate Relative immediately. However, the application to adjust status would have to be filed after the priority date (date of filing of the immigrant petition) is current on the visa bulletin.