Motorola's CEO Sanjay Jha had hinted once before that there would be a family of Motorola tablets, but speaking at Morgan Stanley's Technology, Media & Telecom Conference today, he promised that those other Moto tablets would hit before the end of the year. Naturally, Jha wasn't talking specifics, but we're betting that next tablet is a 7-incher -- he mentioned that 7-inch form factor a number of times and said that size was more "fun" and "portable." Similar to what he said on the Moto earnings call, he implied that the 10-inch size was more for professionals. Jha also spent a bit of time talking about pricing, and stated that he expects the price on the Xoom and other tablets to come down in price in the second half of the year, especially as component prices decrease. So, how's the Xoom doing at that $599 starting price? Well, it's only been a couple of days, but he assured the interviewer that "sales have started relatively well."