I'm making the not-really-very-bold-at-all prediction that the development kit for the iPhone will be released on Tuesday. I make this earth-shattering prediction because Jobs told us that it would be launched in February, and Apple has a habit of interpreting 'month X' as 'the last Tuesday of month X'.

So, what can we hope and expect to see? Personally, I'd be amazed if Apple hasn't been allowing very select third parties access to early versions of the SDK in order that it can have a few apps to unveil alongside the kit itself. I don't think we'll see Flash – it's too early, and besides, it's unlikely that the SDK will allow complete access to all parts of the OS – but it would be great to see a few games launched. The guys at PopCap could do wonders with Bejeweled and Peggle, never mind simple stuff like Battleships.

What about comms apps such as Skype that everyone's clamouring for? I think they'll happen, but not right away, and I wouldn't be surprised to see some restrictions being placed on VoIP apps anyway. Certainly, O2's terms of service forbid it on the cellular network – relevant clause quoted below – but there are some crude ways that even I could think of that Apple could restrict certain data types to WiFi only. I think we'll see Apple itself release iChat for the iPhone, quite possibly alongside the SDK announcement, and developments from the open source community for a multi-protocol IM app such as Adium won't be far behind.

While you can view Word and Excel attachments on the iPhone, there's currently no way to edit them; how long till we see a lightweight office suite? And what about a nimble little image editor? Are you listening Adobe? (Actually, I think we'd be more likely to see small, boutique developers such as BeLight work their Image Tricks magic, depending on what hooks are there in the iPhone's OS.)

It's likely that the apps will be sold through the iTunes Store, as iPod games are currently, and I think it likely that Apple would take a little commission. It's possible that selling through the iTunes Store won't be mandatory – devs could sell from their own sites – but the iTunes Store is a great shop window.

Now over to you: what apps do you think we'll see in the first month, and what ones for you would take the iPhone/iPod touch from nice technical exercises to must-have devices? What, essentially, is the killer app for Apple's new mobile platform?

Data and Wi-Fi excessive usage policy
Your O2 tariff for iPhone allows you unlimited use of O2 UK's EDGE/GPRS networks and The Cloud's UK Wireless LAN network, for personal internet use, email and Visual Voicemail (VVM) on your iPhone only. All usage must be for your private, personal and non-commercial purposes. You may not use your SIM Card in any other device, or use your SIM Card or iPhone to allow the continuous streaming of any audio/video content, enable Voice over Internet (VoIP) P2P or file sharing or use them in such a way that adversely impacts the service to other customers of O2 or The Cloud. If O2 reasonably suspect you are not acting in accordance with this policy O2 reserves the right to impose further charges or disconnect your tariff at any time, having attempted to contact you first.