Create Contact Management Site (Similar to Gmail Contacts)

I would like a contacts form similar to GMail's contacts. The contact entry/edit form should allow dynamic addition/modification/deletion of multiple addresses, phone numbers, email addresses, URL's, add custom attributes, and assign to groups all on a single screen. Site should render correctly on desktop and mobile browsers. Prefer implementations in Grails or Spring Roo will consider any framework you suggest. Sorry, no Ruby or Ruby on Rails at this time. Separation of concerns into UI and Restful web services is preferred. Use of JQuery and GWT is acceptable. Auto-save is not required. ## Deliverables Assume exact replication of GMail contact functionality (CRUD operations) and listing all contacts. with the exception of auto-save during entry. Just let me know about any functionality that will not be included in your bid.