Dell has released the Dell Latitude E5410 and E5510 notebook PCs for business users. The 14.1-inch E5410 and 15.6-inch E5510 feature the Intel Core i5 and i7 CPUs or the new Intel Celeron P4500, all with dual cores, up to 320GB hard drive or up to 128GB solid state storage, up to 8GB RAM, Intel HD graphics, a DVD burner or Blu-ray drive, and Windows 7, Vista, or Ubuntu Linux OS. Dell Latitude E5410 and Dell Latitude E5510 optionally provide WiMAX and mobile broadband connectivity, as well as business-class security features. The notebooks start at $759 and $789 USD, respectively, and are expected to be available soon.