Cloze - Smarter Relationship Management
CamCard - CamCard reads business cards and save instantly to phone Contacts.
Propeller CRM - Small business CRM with deep Gmail integration
ABBYY Business Card Reader - Scan cards ≡ in a second and manage them everywhere ☁
Streak - Manage customers inside Gmail
SuiteFlow - SuiteFlow is a product to customer management solution offering a host of tools to manage inventory, contacts, invoices etc.