Just thought I'd tell you about my setup...
I purchased my "Pay As You Go" T-Mobile Pulse from my local T-Mobile store (for £185 + £10 topup) in Ipswich, Suffolk, UK on Wednesday 28th October 2009, however, they were not ready for the "Internet Booster" PAYG topup at this time, so they may or may not be available in store now, however, as I said, I've had mine for a couple of weeks now.
Also, on PAYG, you have two "Internet Booster" options available:
Text "1MONTHWEB" to 443 for 1 months internet access. This costs £5 credit from your PAYG balance.
Text "6MONTHWEB" to 443 for 6 months internet accces. This costs £20 credit from your PAYG balance.
I can confirm that this works, as both my work colleague and myself have the same T-Mobile Pulse, purchased from our local Ipswich store, and although there was an initial few days delay on T-Mobile's side setting up this internet booster, it does work now.
So, apart from your calling/texting costs, you can obtain a whole 12 months internet access for £40. According to the T-Mobile store staff, this is subject to a "Fair Use Policy". Apparently, if you overuse your allowance, you will receive a number of warning text messages, and if you continue to abuse it, they will cancel your current booster package forcing you to purchase it again.
I have been streaming Spotify and Last.FM audio (high quality streams) via 3G, as well as normal Gmail/Calendar syncronisation (usual Android data communications) every morning and evening before and after work, and hardly use any data at all. You can check your exact usage via the "My T-Mobile" website.
Also, you can queue the Internet Boosters, so for example, if you have £40 credit available, you can text the "6MONTHWEB" twice at the same time, you will debited £40, but you will have 12 months access. Basically, the second booster will not become active until the first one expires.
Finally, if you forget to use these Internet Boosters, you will be charged £2 every day for internet usage. This is not an "upto £2" cost, for example, as soon as your phone accesses any 3G data services beyond midnight, you will be charged £2 for the remainder of the day. I know this because of T-Mobile not configuring the Internet Booster packages when I bought my Pulse, and so I was forced to pay £6 (£2 x 3 days) while they were setting it up. Unfortunately, not even the standard "WEB" internet booster which gives you 5 days access for £2.50 worked either.
Hope this answers any questions you have, and remember this is for the "Pay As You Go" T-Mobile Pulse on the T-Mobile UK network. I cannot comment on the "Contract" version.
This post has been edited by JingleManSweep: 04 November 2009 - 06:12 PM