When Astrid was acquired by Yahoo in May, it warned us that its task management service would close within 90 days. Today, it has a more specific date: customers have until August 5th to export any data they can't afford to lose. Astrid suggests alternative services like Any.DO, Sandglaz, Wrike and Wunderlist for those who want to import their tasks and pick up where they left off. The firmer schedule won't ease the pain for Astrid loyalists, but it should prevent any rude surprises in the weeks ahead. Check out Astrid's email to users after the break.