OCWorkbench reports that Singtel has reduced its plans and the new pricing is on par with M1's broadband plans. On top of that, Singtel is throwing in a 10GB limit instead of 5GB.
The new pricing structure from http://home.singtel.com/bbmobile/HS_price.htm
Broadband on Mobile Plans Price/Bundle
Pay Per Use $0.0037/kb (chargeable in blocks of 2kb)
BB on Mobile Lite (VAS only) $3.21 with $7 bundled (up to 3.6mbps)
BB on Mobile Value $10.70 with $35.00 bundled (up to 3.6 mbps) and Unlimited WIFI (1Mbps) Capped at $88
BB on Mobile Unlimited 512 $22.42 (was 32.10) with 10GB bundled and Unlimited WIFI (1Mbps)
BB on Mobile Unlimited 1800 $38.72 (was 48.15) with 10GB bundled and Unlimited WIFI (1Mbps)
BB on Mobile Unlimited 3600 $69.30 (was $80.25) with 10 GB bundled and Unlimited WIFI (1Mbps)
Excess Usage after bundle $0.0019 /kb(chargeable in blocks of 2KB)
The deal gets better as Singtel throws in 2 mths Free Subscription, plus up to $100 off for any 3G/3.5G handset or you get a FREE USB modem worth $408.
*Valid with 12-month sign-up of selected BroadBand on Mobile plan. Up to $100 OFF any 3G/3.5G handset with (Value/512/1800/3600) plans; Free USB modem with (1800/3600) plans.
* Promotion period is from 28 July to 30 September 2007.
* 2-month FREE subscription is with minimum of one month contractual period.
* Thereafter, prevailing monthly subscription fee applies (7% GST inclusive).
Starhub's HSPA service is not priced competitively against M1 or Singtel. The price plan is also too steep.
Although Singtel's excess charges are cheaper and provide 10GB of data usage, you ought to take note that all the services should be VAS. That is to say, only Singtel Postpaid customers are able to enjoy these offers. M1 on the other hand allows non M1 customers to be their broadband customers. Starhub's requires you to buy the equipment or sign a 2 yrs contract to get the USB modem (Huawei E270) for Free, otherwise you have to pay for it.