Sales of mobile telephones based on the mainland-developed 3G standard are forecast to grow 600 per cent this year as domestic adoption picks up, according to market research firm Strategy Analytics. It expects the potential for growth could be even higher next year if China Mobile finally lands a deal to introduce a TD-SCDMA version of Apple's popular iPhone. 'If Apple eventually chooses to launch a TD-SCDMA version of its iPhone, then we believe this would ignite the market,' said Neil Mawston, a director at Strategy Analytics in the United States. China Mobile chairman Wang Jianzhou said the wireless carrier, the world's largest with 533 million subscribers in February, wanted to offer the iPhone 'as soon as possible', although talks were continuing. The company does not provide TD-SCDMA handset sales but said it had more than 3.4 million 3G subscribers in December. A sevenfold growth in handset sales this year would top last year's global iPhone sales of 20.7 million units. China Mobile chief financial officer Xue Taohai said last month that subsidies for customers' handsets might increase to 15.5 billion yuan (HK$17.62 billion) this year from 11.7 billion yuan last year.