The 9.7-in. TouchPad debuting on July 1 from Hewlett-Packard (HP) will be quickly followed by a 7-in. tablet from HP in August, according to an anonymous source.

Taiwan Economic News on Friday cited an unnamed subcontractor for Inventec Corp., a PC manufacturing company in Taiwan, for information about the smaller tablet. The story said Inventec has “received big-ticket orders for tablet PCs from HP,” for both the 9.7-in. TouchPad and a 7-in. model launching in August.

The announced TouchPad runs WebOS, but no other details were available on the 7-in. model.

Inventec and HP have so far not commented on this story.

HP has not announced a 7-in. tablet, although that form factor is becoming fairly common alongside tablets with screens close to 10 inches in size.

The popular iPad has a 9.7-in. touchscreen, but the Samsung Galaxy Tab started with a 7-in. version, then moved to a 10.1-in. version and in March Samsung announced an 8.9-in. version.

The BlackBerry PlayBook also has a 7-in. touchscreen, while the Motorola Xoom has a 10.1 in. screen. The Cisco Cius will be 7 inches when it finally ships in July.