I think Safaricom should simply lower their upper limit for super ongea tariff rate from 8bob to kedo 4bob and let the minimum hold as-is. As for the sms rates,they should stick to the 15sms' for 10 bob and 5 sms' for 5bob, but across all networks. Then we w8 and see the mhindi's response to that.
As for data, give competitive 'pepea points' based on voice calls made using line, except for those using safaricom modems.
As an investor in safaricom and also having my business mainly relying on mkesho-mpesa product as well as 90% of my clients using my safaricom number to contact me, I would hate to see Safaricom operations severely affected because of this.
If only they listen to their customers,

and model a profitable product around their customer requirements. This would be the best gift Michael Joseph would leave for safaricom.