Recently active ideas in Twitter tagged with direct message

As from today, Twitter no longer deliver SMS updates via +447624801423. Some countries may be given a new number some time in the future - but until then, affected users have to use alternative mobile solutions which don't alert them when a new Direct Message arrives in their Inbox.

My interim proposal:
Twitter should implement a non-answerable so-called ping call for +447624801423 as used by cellity in their cellity freeSMS and cellity Communicator mobile Java applications. This would be inexpensive and easy for Twitter to set up.

This is how the ping call works with cellity applications:

I've added cellityPING to my cellphone's phonebook, and given the number an SMS-like ringtone.
When a new cellity freeSMS arrives, my phone rings briefly and then displays a Missed call from cellityPING.
Then I start the cellity freeSMS Java app. on my phone, and head for my inbox.

I'd like to add TwitterPING +447624801423 to my cellphone's phonebook in the same way, and be alerted whenever a new DM arrives.

Of course, Twitter needn't limit this to Direct Messages. Some of my Twitter contacts update only a couple of times a week, and I'd want a ping alert to their public messages, too.

When I'm without PC access, I start cellityTweeter (16kB) maybe 2 - 3 times a day to view my Twitter timeline. Since cellityTweeter, like all 3rd.-party applications, can access only the last 20 tweets of any timeline, I could easily miss something interesting if my timeline been unusually busy.

The cellity site is not easy to navigate, so here are some links:

Some cellity FAQ (but none on cellityTweeter!)

cellity Communicator (ca. 140kB.
Does "everything", and incorporates all cellityTweeter and cellity freeSMS functions - but won't work on my oldish (2003) Siemens MC60 cellphone).

cellity freeSMS (30 - 37kB, according to phone model - works on my cellphone).
Info about cellity freeSMS on www.GetJar.com.

cellity Tweeter (16kB - excellent on my cellphone).
Info about cellity Tweeter on www.GetJar.com.

I'd like to see a mechanism to reply to and send direct messages to all of my mutual friends at the same time. Since "friends" is a reserved name, this could be achieved by tweeting "@friends This is my reply" and "d friends This is my message." I realize the potential for spam is high, but the current mutual friends limitations should help mitigate that. Thanks!

Occasionally I've started a message with "@whoever", but mistyped the "whoever". Of course then "whoever" doesn't see the message in their replies.

It would be very helpful if, when a user tries to @-message someone and types a name that doesn't exist (obviously if the typo version does exist, there's no way to tell who was really being messaged), that the system could send a direct message saying "the username you just tried to message: '@whoeverr blah blah blah...' doesn't exist, please check."

I would like to be able to view my direct messages in the timeline I see on my home page, but not have them become visible in my public timeline.

I guess what I'm imagining is a setting allowing me to view all of my messages in one place rather than having to switch back and forth between my home page and my direct messages page. Other people looking at my timeline shouldn't see my direct messages, though.

Oh, but it would be cool if they could see only those direct messages involving them as well.